Home / 5,405.43-7,458.20-3,047.57

Finding the Fourth Proportional to 5,405.43, 7,458.20 and 3,047.57

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Solution

The fourth proportional to 5,405.43, 7,458.20 and 3,047.57 is: 4,204.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,405.43 : 7,458.20 = 3,047.57 : x
  2. Step 2: Convert to fraction form
    5,405.43/7,458.20 = 3,047.57/x
  3. Step 3: Cross multiply
    5,405.43x = 7,458.20 × 3,047.57
  4. Step 4: Simplify right side
    5,405.43x = 22,729,386.57
  5. Step 5: Solve for x
    x = 22,729,386.57/5,405.43
  6. Step 6: Final answer
    x = 4,204.92

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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.