Home / 1,505.49-2,078.28-1,132.61

Finding the Fourth Proportional to 1,505.49, 2,078.28 and 1,132.61

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Solution

The fourth proportional to 1,505.49, 2,078.28 and 1,132.61 is: 1,563.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,505.49 : 2,078.28 = 1,132.61 : x
  2. Step 2: Convert to fraction form
    1,505.49/2,078.28 = 1,132.61/x
  3. Step 3: Cross multiply
    1,505.49x = 2,078.28 × 1,132.61
  4. Step 4: Simplify right side
    1,505.49x = 2,353,878.11
  5. Step 5: Solve for x
    x = 2,353,878.11/1,505.49
  6. Step 6: Final answer
    x = 1,563.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.