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Finding the Fourth Proportional to 4,291.58, 5,920.47 and 2,799.15

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Solution

The fourth proportional to 4,291.58, 5,920.47 and 2,799.15 is: 3,861.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,291.58 : 5,920.47 = 2,799.15 : x
  2. Step 2: Convert to fraction form
    4,291.58/5,920.47 = 2,799.15/x
  3. Step 3: Cross multiply
    4,291.58x = 5,920.47 × 2,799.15
  4. Step 4: Simplify right side
    4,291.58x = 16,572,283.60
  5. Step 5: Solve for x
    x = 16,572,283.60/4,291.58
  6. Step 6: Final answer
    x = 3,861.59

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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.