Home / 6,388.69-8,816.39-3,594.19

Finding the Fourth Proportional to 6,388.69, 8,816.39 and 3,594.19

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Solution

The fourth proportional to 6,388.69, 8,816.39 and 3,594.19 is: 4,959.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,388.69 : 8,816.39 = 3,594.19 : x
  2. Step 2: Convert to fraction form
    6,388.69/8,816.39 = 3,594.19/x
  3. Step 3: Cross multiply
    6,388.69x = 8,816.39 × 3,594.19
  4. Step 4: Simplify right side
    6,388.69x = 31,687,780.77
  5. Step 5: Solve for x
    x = 31,687,780.77/6,388.69
  6. Step 6: Final answer
    x = 4,959.98

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Half scale
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Double scale
Find fourth proportional to 6,389.69, 8,817.77 and 3,595.19
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.