Home / 1,560.26-2,155.91-1,248.10

Finding the Fourth Proportional to 1,560.26, 2,155.91 and 1,248.10

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Solution

The fourth proportional to 1,560.26, 2,155.91 and 1,248.10 is: 1,724.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,560.26 : 2,155.91 = 1,248.10 : x
  2. Step 2: Convert to fraction form
    1,560.26/2,155.91 = 1,248.10/x
  3. Step 3: Cross multiply
    1,560.26x = 2,155.91 × 1,248.10
  4. Step 4: Simplify right side
    1,560.26x = 2,690,779.64
  5. Step 5: Solve for x
    x = 2,690,779.64/1,560.26
  6. Step 6: Final answer
    x = 1,724.57

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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.