Home / 1,316.90-1,973.28-700.44

Finding the Fourth Proportional to 1,316.90, 1,973.28 and 700.44

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Solution

The fourth proportional to 1,316.90, 1,973.28 and 700.44 is: 1,049.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316.90 : 1,973.28 = 700.44 : x
  2. Step 2: Convert to fraction form
    1,316.90/1,973.28 = 700.44/x
  3. Step 3: Cross multiply
    1,316.90x = 1,973.28 × 700.44
  4. Step 4: Simplify right side
    1,316.90x = 1,382,164.24
  5. Step 5: Solve for x
    x = 1,382,164.24/1,316.90
  6. Step 6: Final answer
    x = 1,049.56

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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.