Home / 2,920.55-4,379.33-1,071.18

Finding the Fourth Proportional to 2,920.55, 4,379.33 and 1,071.18

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Solution

The fourth proportional to 2,920.55, 4,379.33 and 1,071.18 is: 1,606.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,920.55 : 4,379.33 = 1,071.18 : x
  2. Step 2: Convert to fraction form
    2,920.55/4,379.33 = 1,071.18/x
  3. Step 3: Cross multiply
    2,920.55x = 4,379.33 × 1,071.18
  4. Step 4: Simplify right side
    2,920.55x = 4,691,045.35
  5. Step 5: Solve for x
    x = 4,691,045.35/2,920.55
  6. Step 6: Final answer
    x = 1,606.22

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1.5x scale

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.