Home / 5,142.48-7,712.80-2,369.04

Finding the Fourth Proportional to 5,142.48, 7,712.80 and 2,369.04

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Solution

The fourth proportional to 5,142.48, 7,712.80 and 2,369.04 is: 3,553.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,142.48 : 7,712.80 = 2,369.04 : x
  2. Step 2: Convert to fraction form
    5,142.48/7,712.80 = 2,369.04/x
  3. Step 3: Cross multiply
    5,142.48x = 7,712.80 × 2,369.04
  4. Step 4: Simplify right side
    5,142.48x = 18,271,931.71
  5. Step 5: Solve for x
    x = 18,271,931.71/5,142.48
  6. Step 6: Final answer
    x = 3,553.14

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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.