Home / 2,615.60-3,915.30-1,516.70

Finding the Fourth Proportional to 2,615.60, 3,915.30 and 1,516.70

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Solution

The fourth proportional to 2,615.60, 3,915.30 and 1,516.70 is: 2,270.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.60 : 3,915.30 = 1,516.70 : x
  2. Step 2: Convert to fraction form
    2,615.60/3,915.30 = 1,516.70/x
  3. Step 3: Cross multiply
    2,615.60x = 3,915.30 × 1,516.70
  4. Step 4: Simplify right side
    2,615.60x = 5,938,335.51
  5. Step 5: Solve for x
    x = 5,938,335.51/2,615.60
  6. Step 6: Final answer
    x = 2,270.35

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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.