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Finding the Fourth Proportional to 4,985.44, 7,479.29 and 1,654.75

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Solution

The fourth proportional to 4,985.44, 7,479.29 and 1,654.75 is: 2,482.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.44 : 7,479.29 = 1,654.75 : x
  2. Step 2: Convert to fraction form
    4,985.44/7,479.29 = 1,654.75/x
  3. Step 3: Cross multiply
    4,985.44x = 7,479.29 × 1,654.75
  4. Step 4: Simplify right side
    4,985.44x = 12,376,355.13
  5. Step 5: Solve for x
    x = 12,376,355.13/4,985.44
  6. Step 6: Final answer
    x = 2,482.50

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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.