Home / 3,013.55-4,158.90-1,687.37

Finding the Fourth Proportional to 3,013.55, 4,158.90 and 1,687.37

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Solution

The fourth proportional to 3,013.55, 4,158.90 and 1,687.37 is: 2,328.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,013.55 : 4,158.90 = 1,687.37 : x
  2. Step 2: Convert to fraction form
    3,013.55/4,158.90 = 1,687.37/x
  3. Step 3: Cross multiply
    3,013.55x = 4,158.90 × 1,687.37
  4. Step 4: Simplify right side
    3,013.55x = 7,017,594.66
  5. Step 5: Solve for x
    x = 7,017,594.66/3,013.55
  6. Step 6: Final answer
    x = 2,328.68

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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.