Home / 2,864.20-4,296.30-784.22

Finding the Fourth Proportional to 2,864.20, 4,296.30 and 784.22

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Solution

The fourth proportional to 2,864.20, 4,296.30 and 784.22 is: 1,176.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,864.20 : 4,296.30 = 784.22 : x
  2. Step 2: Convert to fraction form
    2,864.20/4,296.30 = 784.22/x
  3. Step 3: Cross multiply
    2,864.20x = 4,296.30 × 784.22
  4. Step 4: Simplify right side
    2,864.20x = 3,369,244.39
  5. Step 5: Solve for x
    x = 3,369,244.39/2,864.20
  6. Step 6: Final answer
    x = 1,176.33

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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.