Home / 2,390.76-3,291.62-2,040.04

Finding the Fourth Proportional to 2,390.76, 3,291.62 and 2,040.04

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Solution

The fourth proportional to 2,390.76, 3,291.62 and 2,040.04 is: 2,808.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,390.76 : 3,291.62 = 2,040.04 : x
  2. Step 2: Convert to fraction form
    2,390.76/3,291.62 = 2,040.04/x
  3. Step 3: Cross multiply
    2,390.76x = 3,291.62 × 2,040.04
  4. Step 4: Simplify right side
    2,390.76x = 6,715,036.46
  5. Step 5: Solve for x
    x = 6,715,036.46/2,390.76
  6. Step 6: Final answer
    x = 2,808.75

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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.