Home / 2,981.39-4,472.70-1,132.16

Finding the Fourth Proportional to 2,981.39, 4,472.70 and 1,132.16

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Solution

The fourth proportional to 2,981.39, 4,472.70 and 1,132.16 is: 1,698.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,981.39 : 4,472.70 = 1,132.16 : x
  2. Step 2: Convert to fraction form
    2,981.39/4,472.70 = 1,132.16/x
  3. Step 3: Cross multiply
    2,981.39x = 4,472.70 × 1,132.16
  4. Step 4: Simplify right side
    2,981.39x = 5,063,823.21
  5. Step 5: Solve for x
    x = 5,063,823.21/2,981.39
  6. Step 6: Final answer
    x = 1,698.48

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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.