Home / 2,881.87-4,319.14-1,236.49

Finding the Fourth Proportional to 2,881.87, 4,319.14 and 1,236.49

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Solution

The fourth proportional to 2,881.87, 4,319.14 and 1,236.49 is: 1,853.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,881.87 : 4,319.14 = 1,236.49 : x
  2. Step 2: Convert to fraction form
    2,881.87/4,319.14 = 1,236.49/x
  3. Step 3: Cross multiply
    2,881.87x = 4,319.14 × 1,236.49
  4. Step 4: Simplify right side
    2,881.87x = 5,340,573.42
  5. Step 5: Solve for x
    x = 5,340,573.42/2,881.87
  6. Step 6: Final answer
    x = 1,853.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.