Home / 2,853.72-3,938.28-1,675.17

Finding the Fourth Proportional to 2,853.72, 3,938.28 and 1,675.17

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Solution

The fourth proportional to 2,853.72, 3,938.28 and 1,675.17 is: 2,311.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,853.72 : 3,938.28 = 1,675.17 : x
  2. Step 2: Convert to fraction form
    2,853.72/3,938.28 = 1,675.17/x
  3. Step 3: Cross multiply
    2,853.72x = 3,938.28 × 1,675.17
  4. Step 4: Simplify right side
    2,853.72x = 6,597,288.51
  5. Step 5: Solve for x
    x = 6,597,288.51/2,853.72
  6. Step 6: Final answer
    x = 2,311.82

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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.