Home / 5,647.97-7,794.57-3,130.19

Finding the Fourth Proportional to 5,647.97, 7,794.57 and 3,130.19

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Solution

The fourth proportional to 5,647.97, 7,794.57 and 3,130.19 is: 4,319.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,647.97 : 7,794.57 = 3,130.19 : x
  2. Step 2: Convert to fraction form
    5,647.97/7,794.57 = 3,130.19/x
  3. Step 3: Cross multiply
    5,647.97x = 7,794.57 × 3,130.19
  4. Step 4: Simplify right side
    5,647.97x = 24,398,446.10
  5. Step 5: Solve for x
    x = 24,398,446.10/5,647.97
  6. Step 6: Final answer
    x = 4,319.86

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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.