Home / 5,116.60-7,670.40-2,482.78

Finding the Fourth Proportional to 5,116.60, 7,670.40 and 2,482.78

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Solution

The fourth proportional to 5,116.60, 7,670.40 and 2,482.78 is: 3,721.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,116.60 : 7,670.40 = 2,482.78 : x
  2. Step 2: Convert to fraction form
    5,116.60/7,670.40 = 2,482.78/x
  3. Step 3: Cross multiply
    5,116.60x = 7,670.40 × 2,482.78
  4. Step 4: Simplify right side
    5,116.60x = 19,043,915.71
  5. Step 5: Solve for x
    x = 19,043,915.71/5,116.60
  6. Step 6: Final answer
    x = 3,721.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.