Home / 7,525.40-10,385.70-4,381.88

Finding the Fourth Proportional to 7,525.40, 10,385.70 and 4,381.88

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Solution

The fourth proportional to 7,525.40, 10,385.70 and 4,381.88 is: 6,047.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,525.40 : 10,385.70 = 4,381.88 : x
  2. Step 2: Convert to fraction form
    7,525.40/10,385.70 = 4,381.88/x
  3. Step 3: Cross multiply
    7,525.40x = 10,385.70 × 4,381.88
  4. Step 4: Simplify right side
    7,525.40x = 45,508,891.12
  5. Step 5: Solve for x
    x = 45,508,891.12/7,525.40
  6. Step 6: Final answer
    x = 6,047.37

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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.