Home / 2,921.04-4,379.40-1,071.18

Finding the Fourth Proportional to 2,921.04, 4,379.40 and 1,071.18

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Solution

The fourth proportional to 2,921.04, 4,379.40 and 1,071.18 is: 1,605.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.04 : 4,379.40 = 1,071.18 : x
  2. Step 2: Convert to fraction form
    2,921.04/4,379.40 = 1,071.18/x
  3. Step 3: Cross multiply
    2,921.04x = 4,379.40 × 1,071.18
  4. Step 4: Simplify right side
    2,921.04x = 4,691,125.69
  5. Step 5: Solve for x
    x = 4,691,125.69/2,921.04
  6. Step 6: Final answer
    x = 1,605.98

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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.