Home / 2,424.90-3,638.72-1,038.11

Finding the Fourth Proportional to 2,424.90, 3,638.72 and 1,038.11

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Solution

The fourth proportional to 2,424.90, 3,638.72 and 1,038.11 is: 1,557.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,424.90 : 3,638.72 = 1,038.11 : x
  2. Step 2: Convert to fraction form
    2,424.90/3,638.72 = 1,038.11/x
  3. Step 3: Cross multiply
    2,424.90x = 3,638.72 × 1,038.11
  4. Step 4: Simplify right side
    2,424.90x = 3,777,391.62
  5. Step 5: Solve for x
    x = 3,777,391.62/2,424.90
  6. Step 6: Final answer
    x = 1,557.75

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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.