Home / 3,013.32-4,158.60-1,687.02

Finding the Fourth Proportional to 3,013.32, 4,158.60 and 1,687.02

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Solution

The fourth proportional to 3,013.32, 4,158.60 and 1,687.02 is: 2,328.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,013.32 : 4,158.60 = 1,687.02 : x
  2. Step 2: Convert to fraction form
    3,013.32/4,158.60 = 1,687.02/x
  3. Step 3: Cross multiply
    3,013.32x = 4,158.60 × 1,687.02
  4. Step 4: Simplify right side
    3,013.32x = 7,015,641.37
  5. Step 5: Solve for x
    x = 7,015,641.37/3,013.32
  6. Step 6: Final answer
    x = 2,328.21

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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.