Home / 5,085.66-7,018-2,847.13

Finding the Fourth Proportional to 5,085.66, 7,018 and 2,847.13

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Solution

The fourth proportional to 5,085.66, 7,018 and 2,847.13 is: 3,928.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,085.66 : 7,018 = 2,847.13 : x
  2. Step 2: Convert to fraction form
    5,085.66/7,018 = 2,847.13/x
  3. Step 3: Cross multiply
    5,085.66x = 7,018 × 2,847.13
  4. Step 4: Simplify right side
    5,085.66x = 19,981,158.34
  5. Step 5: Solve for x
    x = 19,981,158.34/5,085.66
  6. Step 6: Final answer
    x = 3,928.92

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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.