Home / 1,839.68-2,538-1,316.48

Finding the Fourth Proportional to 1,839.68, 2,538 and 1,316.48

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Solution

The fourth proportional to 1,839.68, 2,538 and 1,316.48 is: 1,816.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,839.68 : 2,538 = 1,316.48 : x
  2. Step 2: Convert to fraction form
    1,839.68/2,538 = 1,316.48/x
  3. Step 3: Cross multiply
    1,839.68x = 2,538 × 1,316.48
  4. Step 4: Simplify right side
    1,839.68x = 3,341,226.24
  5. Step 5: Solve for x
    x = 3,341,226.24/1,839.68
  6. Step 6: Final answer
    x = 1,816.20

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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.