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Finding the Fourth Proportional to 6,488.74, 8,945.13 and 4,622.50

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Solution

The fourth proportional to 6,488.74, 8,945.13 and 4,622.50 is: 6,372.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,488.74 : 8,945.13 = 4,622.50 : x
  2. Step 2: Convert to fraction form
    6,488.74/8,945.13 = 4,622.50/x
  3. Step 3: Cross multiply
    6,488.74x = 8,945.13 × 4,622.50
  4. Step 4: Simplify right side
    6,488.74x = 41,348,863.43
  5. Step 5: Solve for x
    x = 41,348,863.43/6,488.74
  6. Step 6: Final answer
    x = 6,372.40

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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.