Home / 5,122.99-7,684.98-1,374.72

Finding the Fourth Proportional to 5,122.99, 7,684.98 and 1,374.72

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Solution

The fourth proportional to 5,122.99, 7,684.98 and 1,374.72 is: 2,062.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,122.99 : 7,684.98 = 1,374.72 : x
  2. Step 2: Convert to fraction form
    5,122.99/7,684.98 = 1,374.72/x
  3. Step 3: Cross multiply
    5,122.99x = 7,684.98 × 1,374.72
  4. Step 4: Simplify right side
    5,122.99x = 10,564,695.71
  5. Step 5: Solve for x
    x = 10,564,695.71/5,122.99
  6. Step 6: Final answer
    x = 2,062.21

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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.