Home / 2,853.22-4,279.20-904.90

Finding the Fourth Proportional to 2,853.22, 4,279.20 and 904.90

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Solution

The fourth proportional to 2,853.22, 4,279.20 and 904.90 is: 1,357.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,853.22 : 4,279.20 = 904.90 : x
  2. Step 2: Convert to fraction form
    2,853.22/4,279.20 = 904.90/x
  3. Step 3: Cross multiply
    2,853.22x = 4,279.20 × 904.90
  4. Step 4: Simplify right side
    2,853.22x = 3,872,248.08
  5. Step 5: Solve for x
    x = 3,872,248.08/2,853.22
  6. Step 6: Final answer
    x = 1,357.15

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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.