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Finding the Fourth Proportional to 6,498.21, 8,956.96 and 5,079.40

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Solution

The fourth proportional to 6,498.21, 8,956.96 and 5,079.40 is: 7,001.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,498.21 : 8,956.96 = 5,079.40 : x
  2. Step 2: Convert to fraction form
    6,498.21/8,956.96 = 5,079.40/x
  3. Step 3: Cross multiply
    6,498.21x = 8,956.96 × 5,079.40
  4. Step 4: Simplify right side
    6,498.21x = 45,495,947.53
  5. Step 5: Solve for x
    x = 45,495,947.53/6,498.21
  6. Step 6: Final answer
    x = 7,001.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.