Home / 3,159.11-4,359.53-1,723.47

Finding the Fourth Proportional to 3,159.11, 4,359.53 and 1,723.47

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Solution

The fourth proportional to 3,159.11, 4,359.53 and 1,723.47 is: 2,378.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.11 : 4,359.53 = 1,723.47 : x
  2. Step 2: Convert to fraction form
    3,159.11/4,359.53 = 1,723.47/x
  3. Step 3: Cross multiply
    3,159.11x = 4,359.53 × 1,723.47
  4. Step 4: Simplify right side
    3,159.11x = 7,513,510.55
  5. Step 5: Solve for x
    x = 7,513,510.55/3,159.11
  6. Step 6: Final answer
    x = 2,378.37

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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.