Home / 5,509.38-7,603.31-3,119.36

Finding the Fourth Proportional to 5,509.38, 7,603.31 and 3,119.36

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Solution

The fourth proportional to 5,509.38, 7,603.31 and 3,119.36 is: 4,304.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,509.38 : 7,603.31 = 3,119.36 : x
  2. Step 2: Convert to fraction form
    5,509.38/7,603.31 = 3,119.36/x
  3. Step 3: Cross multiply
    5,509.38x = 7,603.31 × 3,119.36
  4. Step 4: Simplify right side
    5,509.38x = 23,717,407.47
  5. Step 5: Solve for x
    x = 23,717,407.47/5,509.38
  6. Step 6: Final answer
    x = 4,304.91

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Half scale
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Double scale
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1.5x scale

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.