Home / 5,279.92-7,285.54-4,486.47

Finding the Fourth Proportional to 5,279.92, 7,285.54 and 4,486.47

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Solution

The fourth proportional to 5,279.92, 7,285.54 and 4,486.47 is: 6,190.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.92 : 7,285.54 = 4,486.47 : x
  2. Step 2: Convert to fraction form
    5,279.92/7,285.54 = 4,486.47/x
  3. Step 3: Cross multiply
    5,279.92x = 7,285.54 × 4,486.47
  4. Step 4: Simplify right side
    5,279.92x = 32,686,356.64
  5. Step 5: Solve for x
    x = 32,686,356.64/5,279.92
  6. Step 6: Final answer
    x = 6,190.69

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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.