Home / 1,742.15-2,404.75-1,557.62

Finding the Fourth Proportional to 1,742.15, 2,404.75 and 1,557.62

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Solution

The fourth proportional to 1,742.15, 2,404.75 and 1,557.62 is: 2,150.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,742.15 : 2,404.75 = 1,557.62 : x
  2. Step 2: Convert to fraction form
    1,742.15/2,404.75 = 1,557.62/x
  3. Step 3: Cross multiply
    1,742.15x = 2,404.75 × 1,557.62
  4. Step 4: Simplify right side
    1,742.15x = 3,745,686.70
  5. Step 5: Solve for x
    x = 3,745,686.70/1,742.15
  6. Step 6: Final answer
    x = 2,150.04

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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.