Home / 2,560.40-3,532.38-1,565.18

Finding the Fourth Proportional to 2,560.40, 3,532.38 and 1,565.18

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Solution

The fourth proportional to 2,560.40, 3,532.38 and 1,565.18 is: 2,159.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,560.40 : 3,532.38 = 1,565.18 : x
  2. Step 2: Convert to fraction form
    2,560.40/3,532.38 = 1,565.18/x
  3. Step 3: Cross multiply
    2,560.40x = 3,532.38 × 1,565.18
  4. Step 4: Simplify right side
    2,560.40x = 5,528,810.53
  5. Step 5: Solve for x
    x = 5,528,810.53/2,560.40
  6. Step 6: Final answer
    x = 2,159.35

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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.