Home / 7,631.28-10,529.20-4,486.88

Finding the Fourth Proportional to 7,631.28, 10,529.20 and 4,486.88

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Solution

The fourth proportional to 7,631.28, 10,529.20 and 4,486.88 is: 6,190.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,631.28 : 10,529.20 = 4,486.88 : x
  2. Step 2: Convert to fraction form
    7,631.28/10,529.20 = 4,486.88/x
  3. Step 3: Cross multiply
    7,631.28x = 10,529.20 × 4,486.88
  4. Step 4: Simplify right side
    7,631.28x = 47,243,256.90
  5. Step 5: Solve for x
    x = 47,243,256.90/7,631.28
  6. Step 6: Final answer
    x = 6,190.74

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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.