Home / 4,748.16-7,122.24-1,285.92

Finding the Fourth Proportional to 4,748.16, 7,122.24 and 1,285.92

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Solution

The fourth proportional to 4,748.16, 7,122.24 and 1,285.92 is: 1,928.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,748.16 : 7,122.24 = 1,285.92 : x
  2. Step 2: Convert to fraction form
    4,748.16/7,122.24 = 1,285.92/x
  3. Step 3: Cross multiply
    4,748.16x = 7,122.24 × 1,285.92
  4. Step 4: Simplify right side
    4,748.16x = 9,158,630.86
  5. Step 5: Solve for x
    x = 9,158,630.86/4,748.16
  6. Step 6: Final answer
    x = 1,928.88

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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.