Home / 2,929.20-4,393.80-2,799.60

Finding the Fourth Proportional to 2,929.20, 4,393.80 and 2,799.60

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Solution

The fourth proportional to 2,929.20, 4,393.80 and 2,799.60 is: 4,199.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.20 : 4,393.80 = 2,799.60 : x
  2. Step 2: Convert to fraction form
    2,929.20/4,393.80 = 2,799.60/x
  3. Step 3: Cross multiply
    2,929.20x = 4,393.80 × 2,799.60
  4. Step 4: Simplify right side
    2,929.20x = 12,300,882.48
  5. Step 5: Solve for x
    x = 12,300,882.48/2,929.20
  6. Step 6: Final answer
    x = 4,199.40

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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.