Home / 3,359.79-5,040.20-1,715.45

Finding the Fourth Proportional to 3,359.79, 5,040.20 and 1,715.45

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Solution

The fourth proportional to 3,359.79, 5,040.20 and 1,715.45 is: 2,573.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,359.79 : 5,040.20 = 1,715.45 : x
  2. Step 2: Convert to fraction form
    3,359.79/5,040.20 = 1,715.45/x
  3. Step 3: Cross multiply
    3,359.79x = 5,040.20 × 1,715.45
  4. Step 4: Simplify right side
    3,359.79x = 8,646,177.31
  5. Step 5: Solve for x
    x = 8,646,177.31/3,359.79
  6. Step 6: Final answer
    x = 2,573.43

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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.