Home / 5,147.04-7,715.92-1,857.81

Finding the Fourth Proportional to 5,147.04, 7,715.92 and 1,857.81

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Solution

The fourth proportional to 5,147.04, 7,715.92 and 1,857.81 is: 2,785.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,147.04 : 7,715.92 = 1,857.81 : x
  2. Step 2: Convert to fraction form
    5,147.04/7,715.92 = 1,857.81/x
  3. Step 3: Cross multiply
    5,147.04x = 7,715.92 × 1,857.81
  4. Step 4: Simplify right side
    5,147.04x = 14,334,713.34
  5. Step 5: Solve for x
    x = 14,334,713.34/5,147.04
  6. Step 6: Final answer
    x = 2,785.04

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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.