Home / 1,316.80-1,973.94-1,230.04

Finding the Fourth Proportional to 1,316.80, 1,973.94 and 1,230.04

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Solution

The fourth proportional to 1,316.80, 1,973.94 and 1,230.04 is: 1,843.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316.80 : 1,973.94 = 1,230.04 : x
  2. Step 2: Convert to fraction form
    1,316.80/1,973.94 = 1,230.04/x
  3. Step 3: Cross multiply
    1,316.80x = 1,973.94 × 1,230.04
  4. Step 4: Simplify right side
    1,316.80x = 2,428,025.16
  5. Step 5: Solve for x
    x = 2,428,025.16/1,316.80
  6. Step 6: Final answer
    x = 1,843.88

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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.