Home / 3,103.32-4,282.60-1,687.01

Finding the Fourth Proportional to 3,103.32, 4,282.60 and 1,687.01

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Solution

The fourth proportional to 3,103.32, 4,282.60 and 1,687.01 is: 2,328.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,103.32 : 4,282.60 = 1,687.01 : x
  2. Step 2: Convert to fraction form
    3,103.32/4,282.60 = 1,687.01/x
  3. Step 3: Cross multiply
    3,103.32x = 4,282.60 × 1,687.01
  4. Step 4: Simplify right side
    3,103.32x = 7,224,789.03
  5. Step 5: Solve for x
    x = 7,224,789.03/3,103.32
  6. Step 6: Final answer
    x = 2,328.08

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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.