Home / 3,013.72-4,159.14-1,687.39

Finding the Fourth Proportional to 3,013.72, 4,159.14 and 1,687.39

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Solution

The fourth proportional to 3,013.72, 4,159.14 and 1,687.39 is: 2,328.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,013.72 : 4,159.14 = 1,687.39 : x
  2. Step 2: Convert to fraction form
    3,013.72/4,159.14 = 1,687.39/x
  3. Step 3: Cross multiply
    3,013.72x = 4,159.14 × 1,687.39
  4. Step 4: Simplify right side
    3,013.72x = 7,018,091.24
  5. Step 5: Solve for x
    x = 7,018,091.24/3,013.72
  6. Step 6: Final answer
    x = 2,328.71

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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.