Home / 2,615.76-3,926.88-1,155.60

Finding the Fourth Proportional to 2,615.76, 3,926.88 and 1,155.60

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Solution

The fourth proportional to 2,615.76, 3,926.88 and 1,155.60 is: 1,734.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.76 : 3,926.88 = 1,155.60 : x
  2. Step 2: Convert to fraction form
    2,615.76/3,926.88 = 1,155.60/x
  3. Step 3: Cross multiply
    2,615.76x = 3,926.88 × 1,155.60
  4. Step 4: Simplify right side
    2,615.76x = 4,537,902.53
  5. Step 5: Solve for x
    x = 4,537,902.53/2,615.76
  6. Step 6: Final answer
    x = 1,734.83

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1.5x scale

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.