Home / 2,947.77-4,421.17-867.54

Finding the Fourth Proportional to 2,947.77, 4,421.17 and 867.54

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Solution

The fourth proportional to 2,947.77, 4,421.17 and 867.54 is: 1,301.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,947.77 : 4,421.17 = 867.54 : x
  2. Step 2: Convert to fraction form
    2,947.77/4,421.17 = 867.54/x
  3. Step 3: Cross multiply
    2,947.77x = 4,421.17 × 867.54
  4. Step 4: Simplify right side
    2,947.77x = 3,835,541.82
  5. Step 5: Solve for x
    x = 3,835,541.82/2,947.77
  6. Step 6: Final answer
    x = 1,301.17

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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.