Home / 1,875.62-2,587.32-1,129.14

Finding the Fourth Proportional to 1,875.62, 2,587.32 and 1,129.14

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Solution

The fourth proportional to 1,875.62, 2,587.32 and 1,129.14 is: 1,557.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,875.62 : 2,587.32 = 1,129.14 : x
  2. Step 2: Convert to fraction form
    1,875.62/2,587.32 = 1,129.14/x
  3. Step 3: Cross multiply
    1,875.62x = 2,587.32 × 1,129.14
  4. Step 4: Simplify right side
    1,875.62x = 2,921,446.50
  5. Step 5: Solve for x
    x = 2,921,446.50/1,875.62
  6. Step 6: Final answer
    x = 1,557.59

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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.