Home / 1,864.08-2,572.16-1,117.88

Finding the Fourth Proportional to 1,864.08, 2,572.16 and 1,117.88

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Solution

The fourth proportional to 1,864.08, 2,572.16 and 1,117.88 is: 1,542.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,864.08 : 2,572.16 = 1,117.88 : x
  2. Step 2: Convert to fraction form
    1,864.08/2,572.16 = 1,117.88/x
  3. Step 3: Cross multiply
    1,864.08x = 2,572.16 × 1,117.88
  4. Step 4: Simplify right side
    1,864.08x = 2,875,366.22
  5. Step 5: Solve for x
    x = 2,875,366.22/1,864.08
  6. Step 6: Final answer
    x = 1,542.51

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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.