Home / 3,159.72-4,360.68-2,372.40

Finding the Fourth Proportional to 3,159.72, 4,360.68 and 2,372.40

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Solution

The fourth proportional to 3,159.72, 4,360.68 and 2,372.40 is: 3,274.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,159.72 : 4,360.68 = 2,372.40 : x
  2. Step 2: Convert to fraction form
    3,159.72/4,360.68 = 2,372.40/x
  3. Step 3: Cross multiply
    3,159.72x = 4,360.68 × 2,372.40
  4. Step 4: Simplify right side
    3,159.72x = 10,345,277.23
  5. Step 5: Solve for x
    x = 10,345,277.23/3,159.72
  6. Step 6: Final answer
    x = 3,274.11

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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.