Home / 4,754.79-7,143.12-2,808.36

Finding the Fourth Proportional to 4,754.79, 7,143.12 and 2,808.36

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Solution

The fourth proportional to 4,754.79, 7,143.12 and 2,808.36 is: 4,219.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,754.79 : 7,143.12 = 2,808.36 : x
  2. Step 2: Convert to fraction form
    4,754.79/7,143.12 = 2,808.36/x
  3. Step 3: Cross multiply
    4,754.79x = 7,143.12 × 2,808.36
  4. Step 4: Simplify right side
    4,754.79x = 20,060,452.48
  5. Step 5: Solve for x
    x = 20,060,452.48/4,754.79
  6. Step 6: Final answer
    x = 4,219.00

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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.