Home / 3,132.52-4,317.70-2,345.20

Finding the Fourth Proportional to 3,132.52, 4,317.70 and 2,345.20

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Solution

The fourth proportional to 3,132.52, 4,317.70 and 2,345.20 is: 3,232.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.52 : 4,317.70 = 2,345.20 : x
  2. Step 2: Convert to fraction form
    3,132.52/4,317.70 = 2,345.20/x
  3. Step 3: Cross multiply
    3,132.52x = 4,317.70 × 2,345.20
  4. Step 4: Simplify right side
    3,132.52x = 10,125,870.04
  5. Step 5: Solve for x
    x = 10,125,870.04/3,132.52
  6. Step 6: Final answer
    x = 3,232.50

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1.5x scale

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.