Home / 1,417.08-2,124.57-758.97

Finding the Fourth Proportional to 1,417.08, 2,124.57 and 758.97

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Solution

The fourth proportional to 1,417.08, 2,124.57 and 758.97 is: 1,137.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,417.08 : 2,124.57 = 758.97 : x
  2. Step 2: Convert to fraction form
    1,417.08/2,124.57 = 758.97/x
  3. Step 3: Cross multiply
    1,417.08x = 2,124.57 × 758.97
  4. Step 4: Simplify right side
    1,417.08x = 1,612,484.89
  5. Step 5: Solve for x
    x = 1,612,484.89/1,417.08
  6. Step 6: Final answer
    x = 1,137.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.