Home / 1,864.78-2,572.62-1,165.75

Finding the Fourth Proportional to 1,864.78, 2,572.62 and 1,165.75

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Solution

The fourth proportional to 1,864.78, 2,572.62 and 1,165.75 is: 1,608.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,864.78 : 2,572.62 = 1,165.75 : x
  2. Step 2: Convert to fraction form
    1,864.78/2,572.62 = 1,165.75/x
  3. Step 3: Cross multiply
    1,864.78x = 2,572.62 × 1,165.75
  4. Step 4: Simplify right side
    1,864.78x = 2,999,031.77
  5. Step 5: Solve for x
    x = 2,999,031.77/1,864.78
  6. Step 6: Final answer
    x = 1,608.25

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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.