Home / 2,947.32-4,065.60-1,767.70

Finding the Fourth Proportional to 2,947.32, 4,065.60 and 1,767.70

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Solution

The fourth proportional to 2,947.32, 4,065.60 and 1,767.70 is: 2,438.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,947.32 : 4,065.60 = 1,767.70 : x
  2. Step 2: Convert to fraction form
    2,947.32/4,065.60 = 1,767.70/x
  3. Step 3: Cross multiply
    2,947.32x = 4,065.60 × 1,767.70
  4. Step 4: Simplify right side
    2,947.32x = 7,186,761.12
  5. Step 5: Solve for x
    x = 7,186,761.12/2,947.32
  6. Step 6: Final answer
    x = 2,438.41

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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.