Home / 3,291.29-4,541.36-1,947.12

Finding the Fourth Proportional to 3,291.29, 4,541.36 and 1,947.12

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Solution

The fourth proportional to 3,291.29, 4,541.36 and 1,947.12 is: 2,686.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,291.29 : 4,541.36 = 1,947.12 : x
  2. Step 2: Convert to fraction form
    3,291.29/4,541.36 = 1,947.12/x
  3. Step 3: Cross multiply
    3,291.29x = 4,541.36 × 1,947.12
  4. Step 4: Simplify right side
    3,291.29x = 8,842,564.37
  5. Step 5: Solve for x
    x = 8,842,564.37/3,291.29
  6. Step 6: Final answer
    x = 2,686.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.