Home / 5,387.23-7,434.67-3,148.79

Finding the Fourth Proportional to 5,387.23, 7,434.67 and 3,148.79

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Solution

The fourth proportional to 5,387.23, 7,434.67 and 3,148.79 is: 4,345.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,387.23 : 7,434.67 = 3,148.79 : x
  2. Step 2: Convert to fraction form
    5,387.23/7,434.67 = 3,148.79/x
  3. Step 3: Cross multiply
    5,387.23x = 7,434.67 × 3,148.79
  4. Step 4: Simplify right side
    5,387.23x = 23,410,217.23
  5. Step 5: Solve for x
    x = 23,410,217.23/5,387.23
  6. Step 6: Final answer
    x = 4,345.51

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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.