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Finding the Fourth Proportional to 3,742.04, 5,613.08 and 1,276.80

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Solution

The fourth proportional to 3,742.04, 5,613.08 and 1,276.80 is: 1,915.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.04 : 5,613.08 = 1,276.80 : x
  2. Step 2: Convert to fraction form
    3,742.04/5,613.08 = 1,276.80/x
  3. Step 3: Cross multiply
    3,742.04x = 5,613.08 × 1,276.80
  4. Step 4: Simplify right side
    3,742.04x = 7,166,780.54
  5. Step 5: Solve for x
    x = 7,166,780.54/3,742.04
  6. Step 6: Final answer
    x = 1,915.21

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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.