Home / 2,781.24-3,838.50-1,602.30

Finding the Fourth Proportional to 2,781.24, 3,838.50 and 1,602.30

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Solution

The fourth proportional to 2,781.24, 3,838.50 and 1,602.30 is: 2,211.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781.24 : 3,838.50 = 1,602.30 : x
  2. Step 2: Convert to fraction form
    2,781.24/3,838.50 = 1,602.30/x
  3. Step 3: Cross multiply
    2,781.24x = 3,838.50 × 1,602.30
  4. Step 4: Simplify right side
    2,781.24x = 6,150,428.55
  5. Step 5: Solve for x
    x = 6,150,428.55/2,781.24
  6. Step 6: Final answer
    x = 2,211.40

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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.