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Finding the Fourth Proportional to 3,560.71, 4,915.13 and 2,679.08

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Solution

The fourth proportional to 3,560.71, 4,915.13 and 2,679.08 is: 3,698.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,560.71 : 4,915.13 = 2,679.08 : x
  2. Step 2: Convert to fraction form
    3,560.71/4,915.13 = 2,679.08/x
  3. Step 3: Cross multiply
    3,560.71x = 4,915.13 × 2,679.08
  4. Step 4: Simplify right side
    3,560.71x = 13,168,003.58
  5. Step 5: Solve for x
    x = 13,168,003.58/3,560.71
  6. Step 6: Final answer
    x = 3,698.14

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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.