Home / 3,107.38-4,661.47-1,132.70

Finding the Fourth Proportional to 3,107.38, 4,661.47 and 1,132.70

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Solution

The fourth proportional to 3,107.38, 4,661.47 and 1,132.70 is: 1,699.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,107.38 : 4,661.47 = 1,132.70 : x
  2. Step 2: Convert to fraction form
    3,107.38/4,661.47 = 1,132.70/x
  3. Step 3: Cross multiply
    3,107.38x = 4,661.47 × 1,132.70
  4. Step 4: Simplify right side
    3,107.38x = 5,280,047.07
  5. Step 5: Solve for x
    x = 5,280,047.07/3,107.38
  6. Step 6: Final answer
    x = 1,699.20

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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.