Home / 1,951.05-2,926.37-490.20

Finding the Fourth Proportional to 1,951.05, 2,926.37 and 490.20

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Solution

The fourth proportional to 1,951.05, 2,926.37 and 490.20 is: 735.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,951.05 : 2,926.37 = 490.20 : x
  2. Step 2: Convert to fraction form
    1,951.05/2,926.37 = 490.20/x
  3. Step 3: Cross multiply
    1,951.05x = 2,926.37 × 490.20
  4. Step 4: Simplify right side
    1,951.05x = 1,434,506.57
  5. Step 5: Solve for x
    x = 1,434,506.57/1,951.05
  6. Step 6: Final answer
    x = 735.25

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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.