Home / 5,348.48-7,379.84-2,990.16

Finding the Fourth Proportional to 5,348.48, 7,379.84 and 2,990.16

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Solution

The fourth proportional to 5,348.48, 7,379.84 and 2,990.16 is: 4,125.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,348.48 : 7,379.84 = 2,990.16 : x
  2. Step 2: Convert to fraction form
    5,348.48/7,379.84 = 2,990.16/x
  3. Step 3: Cross multiply
    5,348.48x = 7,379.84 × 2,990.16
  4. Step 4: Simplify right side
    5,348.48x = 22,066,909.85
  5. Step 5: Solve for x
    x = 22,066,909.85/5,348.48
  6. Step 6: Final answer
    x = 4,125.83

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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.