Home / 2,430.76-3,640.20-1,132.60

Finding the Fourth Proportional to 2,430.76, 3,640.20 and 1,132.60

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Solution

The fourth proportional to 2,430.76, 3,640.20 and 1,132.60 is: 1,696.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,430.76 : 3,640.20 = 1,132.60 : x
  2. Step 2: Convert to fraction form
    2,430.76/3,640.20 = 1,132.60/x
  3. Step 3: Cross multiply
    2,430.76x = 3,640.20 × 1,132.60
  4. Step 4: Simplify right side
    2,430.76x = 4,122,890.52
  5. Step 5: Solve for x
    x = 4,122,890.52/2,430.76
  6. Step 6: Final answer
    x = 1,696.13

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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.