Home / 2,891.28-4,337.58-943.62

Finding the Fourth Proportional to 2,891.28, 4,337.58 and 943.62

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Solution

The fourth proportional to 2,891.28, 4,337.58 and 943.62 is: 1,415.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,891.28 : 4,337.58 = 943.62 : x
  2. Step 2: Convert to fraction form
    2,891.28/4,337.58 = 943.62/x
  3. Step 3: Cross multiply
    2,891.28x = 4,337.58 × 943.62
  4. Step 4: Simplify right side
    2,891.28x = 4,093,027.24
  5. Step 5: Solve for x
    x = 4,093,027.24/2,891.28
  6. Step 6: Final answer
    x = 1,415.65

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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.