Home / 3,520.10-4,857.73-1,948.19

Finding the Fourth Proportional to 3,520.10, 4,857.73 and 1,948.19

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Solution

The fourth proportional to 3,520.10, 4,857.73 and 1,948.19 is: 2,688.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.10 : 4,857.73 = 1,948.19 : x
  2. Step 2: Convert to fraction form
    3,520.10/4,857.73 = 1,948.19/x
  3. Step 3: Cross multiply
    3,520.10x = 4,857.73 × 1,948.19
  4. Step 4: Simplify right side
    3,520.10x = 9,463,781.01
  5. Step 5: Solve for x
    x = 9,463,781.01/3,520.10
  6. Step 6: Final answer
    x = 2,688.50

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Half scale
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Double scale
Find fourth proportional to 3,521.10, 4,859.11 and 1,949.19
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.