Home / 7,685.75-10,607.30-4,329.20

Finding the Fourth Proportional to 7,685.75, 10,607.30 and 4,329.20

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Solution

The fourth proportional to 7,685.75, 10,607.30 and 4,329.20 is: 5,974.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,685.75 : 10,607.30 = 4,329.20 : x
  2. Step 2: Convert to fraction form
    7,685.75/10,607.30 = 4,329.20/x
  3. Step 3: Cross multiply
    7,685.75x = 10,607.30 × 4,329.20
  4. Step 4: Simplify right side
    7,685.75x = 45,921,048.48
  5. Step 5: Solve for x
    x = 45,921,048.48/7,685.75
  6. Step 6: Final answer
    x = 5,974.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.