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Finding the Fourth Proportional to 3,902.04, 5,853.06 and 1,307.88

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Solution

The fourth proportional to 3,902.04, 5,853.06 and 1,307.88 is: 1,961.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902.04 : 5,853.06 = 1,307.88 : x
  2. Step 2: Convert to fraction form
    3,902.04/5,853.06 = 1,307.88/x
  3. Step 3: Cross multiply
    3,902.04x = 5,853.06 × 1,307.88
  4. Step 4: Simplify right side
    3,902.04x = 7,655,100.11
  5. Step 5: Solve for x
    x = 7,655,100.11/3,902.04
  6. Step 6: Final answer
    x = 1,961.82

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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.