Home / 5,403.65-7,456.77-3,045.78

Finding the Fourth Proportional to 5,403.65, 7,456.77 and 3,045.78

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Solution

The fourth proportional to 5,403.65, 7,456.77 and 3,045.78 is: 4,203.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,403.65 : 7,456.77 = 3,045.78 : x
  2. Step 2: Convert to fraction form
    5,403.65/7,456.77 = 3,045.78/x
  3. Step 3: Cross multiply
    5,403.65x = 7,456.77 × 3,045.78
  4. Step 4: Simplify right side
    5,403.65x = 22,711,680.93
  5. Step 5: Solve for x
    x = 22,711,680.93/5,403.65
  6. Step 6: Final answer
    x = 4,203.03

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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.