Home / 5,405.06-7,443.19-5,177.45

Finding the Fourth Proportional to 5,405.06, 7,443.19 and 5,177.45

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Solution

The fourth proportional to 5,405.06, 7,443.19 and 5,177.45 is: 7,129.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,405.06 : 7,443.19 = 5,177.45 : x
  2. Step 2: Convert to fraction form
    5,405.06/7,443.19 = 5,177.45/x
  3. Step 3: Cross multiply
    5,405.06x = 7,443.19 × 5,177.45
  4. Step 4: Simplify right side
    5,405.06x = 38,536,769.15
  5. Step 5: Solve for x
    x = 38,536,769.15/5,405.06
  6. Step 6: Final answer
    x = 7,129.75

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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.