Home / 3,013.79-4,159.11-1,687.48

Finding the Fourth Proportional to 3,013.79, 4,159.11 and 1,687.48

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Solution

The fourth proportional to 3,013.79, 4,159.11 and 1,687.48 is: 2,328.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,013.79 : 4,159.11 = 1,687.48 : x
  2. Step 2: Convert to fraction form
    3,013.79/4,159.11 = 1,687.48/x
  3. Step 3: Cross multiply
    3,013.79x = 4,159.11 × 1,687.48
  4. Step 4: Simplify right side
    3,013.79x = 7,018,394.15
  5. Step 5: Solve for x
    x = 7,018,394.15/3,013.79
  6. Step 6: Final answer
    x = 2,328.76

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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.