Home / 7,527.87-10,388.52-4,170.90

Finding the Fourth Proportional to 7,527.87, 10,388.52 and 4,170.90

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Solution

The fourth proportional to 7,527.87, 10,388.52 and 4,170.90 is: 5,755.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,527.87 : 10,388.52 = 4,170.90 : x
  2. Step 2: Convert to fraction form
    7,527.87/10,388.52 = 4,170.90/x
  3. Step 3: Cross multiply
    7,527.87x = 10,388.52 × 4,170.90
  4. Step 4: Simplify right side
    7,527.87x = 43,329,478.07
  5. Step 5: Solve for x
    x = 43,329,478.07/7,527.87
  6. Step 6: Final answer
    x = 5,755.87

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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.