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Finding the Fourth Proportional to 2,632.13, 3,947.75 and 876.94

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Solution

The fourth proportional to 2,632.13, 3,947.75 and 876.94 is: 1,315.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,632.13 : 3,947.75 = 876.94 : x
  2. Step 2: Convert to fraction form
    2,632.13/3,947.75 = 876.94/x
  3. Step 3: Cross multiply
    2,632.13x = 3,947.75 × 876.94
  4. Step 4: Simplify right side
    2,632.13x = 3,461,926.45
  5. Step 5: Solve for x
    x = 3,461,926.45/2,632.13
  6. Step 6: Final answer
    x = 1,315.26

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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.