Home / 2,560.19-3,531.98-1,565.15

Finding the Fourth Proportional to 2,560.19, 3,531.98 and 1,565.15

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Solution

The fourth proportional to 2,560.19, 3,531.98 and 1,565.15 is: 2,159.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,560.19 : 3,531.98 = 1,565.15 : x
  2. Step 2: Convert to fraction form
    2,560.19/3,531.98 = 1,565.15/x
  3. Step 3: Cross multiply
    2,560.19x = 3,531.98 × 1,565.15
  4. Step 4: Simplify right side
    2,560.19x = 5,528,064.75
  5. Step 5: Solve for x
    x = 5,528,064.75/2,560.19
  6. Step 6: Final answer
    x = 2,159.24

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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.