Home / 4,979.40-7,469.10-1,281.63

Finding the Fourth Proportional to 4,979.40, 7,469.10 and 1,281.63

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Solution

The fourth proportional to 4,979.40, 7,469.10 and 1,281.63 is: 1,922.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,979.40 : 7,469.10 = 1,281.63 : x
  2. Step 2: Convert to fraction form
    4,979.40/7,469.10 = 1,281.63/x
  3. Step 3: Cross multiply
    4,979.40x = 7,469.10 × 1,281.63
  4. Step 4: Simplify right side
    4,979.40x = 9,572,622.63
  5. Step 5: Solve for x
    x = 9,572,622.63/4,979.40
  6. Step 6: Final answer
    x = 1,922.45

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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.