Home / 5,727.02-7,903.84-3,209.12

Finding the Fourth Proportional to 5,727.02, 7,903.84 and 3,209.12

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Solution

The fourth proportional to 5,727.02, 7,903.84 and 3,209.12 is: 4,428.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,727.02 : 7,903.84 = 3,209.12 : x
  2. Step 2: Convert to fraction form
    5,727.02/7,903.84 = 3,209.12/x
  3. Step 3: Cross multiply
    5,727.02x = 7,903.84 × 3,209.12
  4. Step 4: Simplify right side
    5,727.02x = 25,364,371.02
  5. Step 5: Solve for x
    x = 25,364,371.02/5,727.02
  6. Step 6: Final answer
    x = 4,428.90

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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.