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Finding the Fourth Proportional to 5,164.12, 7,746.30 and 1,654.80

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Solution

The fourth proportional to 5,164.12, 7,746.30 and 1,654.80 is: 2,482.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,164.12 : 7,746.30 = 1,654.80 : x
  2. Step 2: Convert to fraction form
    5,164.12/7,746.30 = 1,654.80/x
  3. Step 3: Cross multiply
    5,164.12x = 7,746.30 × 1,654.80
  4. Step 4: Simplify right side
    5,164.12x = 12,818,577.24
  5. Step 5: Solve for x
    x = 12,818,577.24/5,164.12
  6. Step 6: Final answer
    x = 2,482.24

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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.