Home / 5,403.61-7,456.89-3,045.61

Finding the Fourth Proportional to 5,403.61, 7,456.89 and 3,045.61

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Solution

The fourth proportional to 5,403.61, 7,456.89 and 3,045.61 is: 4,202.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,403.61 : 7,456.89 = 3,045.61 : x
  2. Step 2: Convert to fraction form
    5,403.61/7,456.89 = 3,045.61/x
  3. Step 3: Cross multiply
    5,403.61x = 7,456.89 × 3,045.61
  4. Step 4: Simplify right side
    5,403.61x = 22,710,778.75
  5. Step 5: Solve for x
    x = 22,710,778.75/5,403.61
  6. Step 6: Final answer
    x = 4,202.89

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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.