Home / 1,839.20-2,756.34-1,643.96

Finding the Fourth Proportional to 1,839.20, 2,756.34 and 1,643.96

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Solution

The fourth proportional to 1,839.20, 2,756.34 and 1,643.96 is: 2,463.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,839.20 : 2,756.34 = 1,643.96 : x
  2. Step 2: Convert to fraction form
    1,839.20/2,756.34 = 1,643.96/x
  3. Step 3: Cross multiply
    1,839.20x = 2,756.34 × 1,643.96
  4. Step 4: Simplify right side
    1,839.20x = 4,531,312.71
  5. Step 5: Solve for x
    x = 4,531,312.71/1,839.20
  6. Step 6: Final answer
    x = 2,463.74

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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.