Home / 4,989.76-7,484.84-1,292.12

Finding the Fourth Proportional to 4,989.76, 7,484.84 and 1,292.12

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Solution

The fourth proportional to 4,989.76, 7,484.84 and 1,292.12 is: 1,938.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989.76 : 7,484.84 = 1,292.12 : x
  2. Step 2: Convert to fraction form
    4,989.76/7,484.84 = 1,292.12/x
  3. Step 3: Cross multiply
    4,989.76x = 7,484.84 × 1,292.12
  4. Step 4: Simplify right side
    4,989.76x = 9,671,311.46
  5. Step 5: Solve for x
    x = 9,671,311.46/4,989.76
  6. Step 6: Final answer
    x = 1,938.23

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Double scale
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Similar ratio
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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.