Home / 2,503.20-3,752.29-858.63

Finding the Fourth Proportional to 2,503.20, 3,752.29 and 858.63

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Solution

The fourth proportional to 2,503.20, 3,752.29 and 858.63 is: 1,287.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,503.20 : 3,752.29 = 858.63 : x
  2. Step 2: Convert to fraction form
    2,503.20/3,752.29 = 858.63/x
  3. Step 3: Cross multiply
    2,503.20x = 3,752.29 × 858.63
  4. Step 4: Simplify right side
    2,503.20x = 3,221,843.91
  5. Step 5: Solve for x
    x = 3,221,843.91/2,503.20
  6. Step 6: Final answer
    x = 1,287.09

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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.