Home / 1,951.17-2,926.72-490.32

Finding the Fourth Proportional to 1,951.17, 2,926.72 and 490.32

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Solution

The fourth proportional to 1,951.17, 2,926.72 and 490.32 is: 735.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,951.17 : 2,926.72 = 490.32 : x
  2. Step 2: Convert to fraction form
    1,951.17/2,926.72 = 490.32/x
  3. Step 3: Cross multiply
    1,951.17x = 2,926.72 × 490.32
  4. Step 4: Simplify right side
    1,951.17x = 1,435,020.81
  5. Step 5: Solve for x
    x = 1,435,020.81/1,951.17
  6. Step 6: Final answer
    x = 735.47

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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.