Home / 2,947.14-4,420.44-999.12

Finding the Fourth Proportional to 2,947.14, 4,420.44 and 999.12

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Solution

The fourth proportional to 2,947.14, 4,420.44 and 999.12 is: 1,498.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,947.14 : 4,420.44 = 999.12 : x
  2. Step 2: Convert to fraction form
    2,947.14/4,420.44 = 999.12/x
  3. Step 3: Cross multiply
    2,947.14x = 4,420.44 × 999.12
  4. Step 4: Simplify right side
    2,947.14x = 4,416,550.01
  5. Step 5: Solve for x
    x = 4,416,550.01/2,947.14
  6. Step 6: Final answer
    x = 1,498.59

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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.