Home / 4,001.05-5,520.18-2,406.70

Finding the Fourth Proportional to 4,001.05, 5,520.18 and 2,406.70

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Solution

The fourth proportional to 4,001.05, 5,520.18 and 2,406.70 is: 3,320.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,001.05 : 5,520.18 = 2,406.70 : x
  2. Step 2: Convert to fraction form
    4,001.05/5,520.18 = 2,406.70/x
  3. Step 3: Cross multiply
    4,001.05x = 5,520.18 × 2,406.70
  4. Step 4: Simplify right side
    4,001.05x = 13,285,417.21
  5. Step 5: Solve for x
    x = 13,285,417.21/4,001.05
  6. Step 6: Final answer
    x = 3,320.48

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Half scale
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Double scale
Find fourth proportional to 4,002.05, 5,521.56 and 2,407.70
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.