Home / 5,785.38-7,981.29-3,426.21

Finding the Fourth Proportional to 5,785.38, 7,981.29 and 3,426.21

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Solution

The fourth proportional to 5,785.38, 7,981.29 and 3,426.21 is: 4,726.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,785.38 : 7,981.29 = 3,426.21 : x
  2. Step 2: Convert to fraction form
    5,785.38/7,981.29 = 3,426.21/x
  3. Step 3: Cross multiply
    5,785.38x = 7,981.29 × 3,426.21
  4. Step 4: Simplify right side
    5,785.38x = 27,345,575.61
  5. Step 5: Solve for x
    x = 27,345,575.61/5,785.38
  6. Step 6: Final answer
    x = 4,726.67

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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.