Home / 2,314.20-3,193.63-1,319.49

Finding the Fourth Proportional to 2,314.20, 3,193.63 and 1,319.49

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Solution

The fourth proportional to 2,314.20, 3,193.63 and 1,319.49 is: 1,820.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,314.20 : 3,193.63 = 1,319.49 : x
  2. Step 2: Convert to fraction form
    2,314.20/3,193.63 = 1,319.49/x
  3. Step 3: Cross multiply
    2,314.20x = 3,193.63 × 1,319.49
  4. Step 4: Simplify right side
    2,314.20x = 4,213,959.55
  5. Step 5: Solve for x
    x = 4,213,959.55/2,314.20
  6. Step 6: Final answer
    x = 1,820.92

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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.