Home / 2,947.19-4,360.64-2,939.09

Finding the Fourth Proportional to 2,947.19, 4,360.64 and 2,939.09

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Solution

The fourth proportional to 2,947.19, 4,360.64 and 2,939.09 is: 4,348.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,947.19 : 4,360.64 = 2,939.09 : x
  2. Step 2: Convert to fraction form
    2,947.19/4,360.64 = 2,939.09/x
  3. Step 3: Cross multiply
    2,947.19x = 4,360.64 × 2,939.09
  4. Step 4: Simplify right side
    2,947.19x = 12,816,276.92
  5. Step 5: Solve for x
    x = 12,816,276.92/2,947.19
  6. Step 6: Final answer
    x = 4,348.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.