Home / 5,279.92-7,288.53-3,291.45

Finding the Fourth Proportional to 5,279.92, 7,288.53 and 3,291.45

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Solution

The fourth proportional to 5,279.92, 7,288.53 and 3,291.45 is: 4,543.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.92 : 7,288.53 = 3,291.45 : x
  2. Step 2: Convert to fraction form
    5,279.92/7,288.53 = 3,291.45/x
  3. Step 3: Cross multiply
    5,279.92x = 7,288.53 × 3,291.45
  4. Step 4: Simplify right side
    5,279.92x = 23,989,832.07
  5. Step 5: Solve for x
    x = 23,989,832.07/5,279.92
  6. Step 6: Final answer
    x = 4,543.60

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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.