Home / 1,451.30-2,176.96-355.66

Finding the Fourth Proportional to 1,451.30, 2,176.96 and 355.66

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Solution

The fourth proportional to 1,451.30, 2,176.96 and 355.66 is: 533.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,451.30 : 2,176.96 = 355.66 : x
  2. Step 2: Convert to fraction form
    1,451.30/2,176.96 = 355.66/x
  3. Step 3: Cross multiply
    1,451.30x = 2,176.96 × 355.66
  4. Step 4: Simplify right side
    1,451.30x = 774,257.59
  5. Step 5: Solve for x
    x = 774,257.59/1,451.30
  6. Step 6: Final answer
    x = 533.49

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Double scale
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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.