Home / 5,715.04-7,886.94-3,197.20

Finding the Fourth Proportional to 5,715.04, 7,886.94 and 3,197.20

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Solution

The fourth proportional to 5,715.04, 7,886.94 and 3,197.20 is: 4,412.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,715.04 : 7,886.94 = 3,197.20 : x
  2. Step 2: Convert to fraction form
    5,715.04/7,886.94 = 3,197.20/x
  3. Step 3: Cross multiply
    5,715.04x = 7,886.94 × 3,197.20
  4. Step 4: Simplify right side
    5,715.04x = 25,216,124.57
  5. Step 5: Solve for x
    x = 25,216,124.57/5,715.04
  6. Step 6: Final answer
    x = 4,412.24

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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.