Home / 7,125.10-10,686.03-3,425.02

Finding the Fourth Proportional to 7,125.10, 10,686.03 and 3,425.02

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Solution

The fourth proportional to 7,125.10, 10,686.03 and 3,425.02 is: 5,136.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,125.10 : 10,686.03 = 3,425.02 : x
  2. Step 2: Convert to fraction form
    7,125.10/10,686.03 = 3,425.02/x
  3. Step 3: Cross multiply
    7,125.10x = 10,686.03 × 3,425.02
  4. Step 4: Simplify right side
    7,125.10x = 36,599,866.47
  5. Step 5: Solve for x
    x = 36,599,866.47/7,125.10
  6. Step 6: Final answer
    x = 5,136.75

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1.5x scale

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.