Home / 1,173.38-1,619.44-707.90

Finding the Fourth Proportional to 1,173.38, 1,619.44 and 707.90

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Solution

The fourth proportional to 1,173.38, 1,619.44 and 707.90 is: 977.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173.38 : 1,619.44 = 707.90 : x
  2. Step 2: Convert to fraction form
    1,173.38/1,619.44 = 707.90/x
  3. Step 3: Cross multiply
    1,173.38x = 1,619.44 × 707.90
  4. Step 4: Simplify right side
    1,173.38x = 1,146,391.71
  5. Step 5: Solve for x
    x = 1,146,391.71/1,173.38
  6. Step 6: Final answer
    x = 977.00

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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.