Home / 5,068.72-7,605.28-2,147.68

Finding the Fourth Proportional to 5,068.72, 7,605.28 and 2,147.68

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Solution

The fourth proportional to 5,068.72, 7,605.28 and 2,147.68 is: 3,222.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,068.72 : 7,605.28 = 2,147.68 : x
  2. Step 2: Convert to fraction form
    5,068.72/7,605.28 = 2,147.68/x
  3. Step 3: Cross multiply
    5,068.72x = 7,605.28 × 2,147.68
  4. Step 4: Simplify right side
    5,068.72x = 16,333,707.75
  5. Step 5: Solve for x
    x = 16,333,707.75/5,068.72
  6. Step 6: Final answer
    x = 3,222.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.