Home / 3,013.12-4,158.22-1,686.84

Finding the Fourth Proportional to 3,013.12, 4,158.22 and 1,686.84

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Solution

The fourth proportional to 3,013.12, 4,158.22 and 1,686.84 is: 2,327.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,013.12 : 4,158.22 = 1,686.84 : x
  2. Step 2: Convert to fraction form
    3,013.12/4,158.22 = 1,686.84/x
  3. Step 3: Cross multiply
    3,013.12x = 4,158.22 × 1,686.84
  4. Step 4: Simplify right side
    3,013.12x = 7,014,248.14
  5. Step 5: Solve for x
    x = 7,014,248.14/3,013.12
  6. Step 6: Final answer
    x = 2,327.90

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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.