Home / 2,948.13-4,422.63-1,561.11

Finding the Fourth Proportional to 2,948.13, 4,422.63 and 1,561.11

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Solution

The fourth proportional to 2,948.13, 4,422.63 and 1,561.11 is: 2,341.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,948.13 : 4,422.63 = 1,561.11 : x
  2. Step 2: Convert to fraction form
    2,948.13/4,422.63 = 1,561.11/x
  3. Step 3: Cross multiply
    2,948.13x = 4,422.63 × 1,561.11
  4. Step 4: Simplify right side
    2,948.13x = 6,904,201.19
  5. Step 5: Solve for x
    x = 6,904,201.19/2,948.13
  6. Step 6: Final answer
    x = 2,341.89

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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.