Home / 2,318.13-3,199.07-1,270.20

Finding the Fourth Proportional to 2,318.13, 3,199.07 and 1,270.20

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Solution

The fourth proportional to 2,318.13, 3,199.07 and 1,270.20 is: 1,752.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,318.13 : 3,199.07 = 1,270.20 : x
  2. Step 2: Convert to fraction form
    2,318.13/3,199.07 = 1,270.20/x
  3. Step 3: Cross multiply
    2,318.13x = 3,199.07 × 1,270.20
  4. Step 4: Simplify right side
    2,318.13x = 4,063,458.71
  5. Step 5: Solve for x
    x = 4,063,458.71/2,318.13
  6. Step 6: Final answer
    x = 1,752.90

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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.