Home / 2,631,948.60-3,949,766.10-1,687,615.80

Finding the Fourth Proportional to 2,631,948.60, 3,949,766.10 and 1,687,615.80

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Solution

The fourth proportional to 2,631,948.60, 3,949,766.10 and 1,687,615.80 is: 2,532,605.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631,948.60 : 3,949,766.10 = 1,687,615.80 : x
  2. Step 2: Convert to fraction form
    2,631,948.60/3,949,766.10 = 1,687,615.80/x
  3. Step 3: Cross multiply
    2,631,948.60x = 3,949,766.10 × 1,687,615.80
  4. Step 4: Simplify right side
    2,631,948.60x = 6,665,687,676,664.38
  5. Step 5: Solve for x
    x = 6,665,687,676,664.38/2,631,948.60
  6. Step 6: Final answer
    x = 2,532,605.57

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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.