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Finding the Fourth Proportional to 6,486.70, 8,948.05 and 4,252.18

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Solution

The fourth proportional to 6,486.70, 8,948.05 and 4,252.18 is: 5,865.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,486.70 : 8,948.05 = 4,252.18 : x
  2. Step 2: Convert to fraction form
    6,486.70/8,948.05 = 4,252.18/x
  3. Step 3: Cross multiply
    6,486.70x = 8,948.05 × 4,252.18
  4. Step 4: Simplify right side
    6,486.70x = 38,048,697.99
  5. Step 5: Solve for x
    x = 38,048,697.99/6,486.70
  6. Step 6: Final answer
    x = 5,865.65

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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.