Home / 2,939.48-4,405.20-1,479.63

Finding the Fourth Proportional to 2,939.48, 4,405.20 and 1,479.63

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Solution

The fourth proportional to 2,939.48, 4,405.20 and 1,479.63 is: 2,217.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.48 : 4,405.20 = 1,479.63 : x
  2. Step 2: Convert to fraction form
    2,939.48/4,405.20 = 1,479.63/x
  3. Step 3: Cross multiply
    2,939.48x = 4,405.20 × 1,479.63
  4. Step 4: Simplify right side
    2,939.48x = 6,518,066.08
  5. Step 5: Solve for x
    x = 6,518,066.08/2,939.48
  6. Step 6: Final answer
    x = 2,217.43

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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.