Home / 2,915.60-4,360.11-2,175.74

Finding the Fourth Proportional to 2,915.60, 4,360.11 and 2,175.74

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Solution

The fourth proportional to 2,915.60, 4,360.11 and 2,175.74 is: 3,253.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,915.60 : 4,360.11 = 2,175.74 : x
  2. Step 2: Convert to fraction form
    2,915.60/4,360.11 = 2,175.74/x
  3. Step 3: Cross multiply
    2,915.60x = 4,360.11 × 2,175.74
  4. Step 4: Simplify right side
    2,915.60x = 9,486,435.77
  5. Step 5: Solve for x
    x = 9,486,435.77/2,915.60
  6. Step 6: Final answer
    x = 3,253.68

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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.