Home / 5,124.53-7,686.80-1,426.76

Finding the Fourth Proportional to 5,124.53, 7,686.80 and 1,426.76

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Solution

The fourth proportional to 5,124.53, 7,686.80 and 1,426.76 is: 2,140.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,124.53 : 7,686.80 = 1,426.76 : x
  2. Step 2: Convert to fraction form
    5,124.53/7,686.80 = 1,426.76/x
  3. Step 3: Cross multiply
    5,124.53x = 7,686.80 × 1,426.76
  4. Step 4: Simplify right side
    5,124.53x = 10,967,173.20
  5. Step 5: Solve for x
    x = 10,967,173.20/5,124.53
  6. Step 6: Final answer
    x = 2,140.13

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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.