Home / 7,294.18-10,925.61-3,128.77

Finding the Fourth Proportional to 7,294.18, 10,925.61 and 3,128.77

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Solution

The fourth proportional to 7,294.18, 10,925.61 and 3,128.77 is: 4,686.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,294.18 : 10,925.61 = 3,128.77 : x
  2. Step 2: Convert to fraction form
    7,294.18/10,925.61 = 3,128.77/x
  3. Step 3: Cross multiply
    7,294.18x = 10,925.61 × 3,128.77
  4. Step 4: Simplify right side
    7,294.18x = 34,183,720.80
  5. Step 5: Solve for x
    x = 34,183,720.80/7,294.18
  6. Step 6: Final answer
    x = 4,686.44

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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.