Home / 3,013.03-4,157.78-1,686.72

Finding the Fourth Proportional to 3,013.03, 4,157.78 and 1,686.72

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Solution

The fourth proportional to 3,013.03, 4,157.78 and 1,686.72 is: 2,327.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,013.03 : 4,157.78 = 1,686.72 : x
  2. Step 2: Convert to fraction form
    3,013.03/4,157.78 = 1,686.72/x
  3. Step 3: Cross multiply
    3,013.03x = 4,157.78 × 1,686.72
  4. Step 4: Simplify right side
    3,013.03x = 7,013,014.90
  5. Step 5: Solve for x
    x = 7,013,014.90/3,013.03
  6. Step 6: Final answer
    x = 2,327.56

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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.