Home / 2,951.75-4,428.39-1,307.90

Finding the Fourth Proportional to 2,951.75, 4,428.39 and 1,307.90

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Solution

The fourth proportional to 2,951.75, 4,428.39 and 1,307.90 is: 1,962.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,951.75 : 4,428.39 = 1,307.90 : x
  2. Step 2: Convert to fraction form
    2,951.75/4,428.39 = 1,307.90/x
  3. Step 3: Cross multiply
    2,951.75x = 4,428.39 × 1,307.90
  4. Step 4: Simplify right side
    2,951.75x = 5,791,899.90
  5. Step 5: Solve for x
    x = 5,791,899.90/2,951.75
  6. Step 6: Final answer
    x = 1,962.19

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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.