Home / 3,013.05-4,157.97-1,686.76

Finding the Fourth Proportional to 3,013.05, 4,157.97 and 1,686.76

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Solution

The fourth proportional to 3,013.05, 4,157.97 and 1,686.76 is: 2,327.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,013.05 : 4,157.97 = 1,686.76 : x
  2. Step 2: Convert to fraction form
    3,013.05/4,157.97 = 1,686.76/x
  3. Step 3: Cross multiply
    3,013.05x = 4,157.97 × 1,686.76
  4. Step 4: Simplify right side
    3,013.05x = 7,013,476.69
  5. Step 5: Solve for x
    x = 7,013,476.69/3,013.05
  6. Step 6: Final answer
    x = 2,327.70

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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.