Home / 4,945.30-7,416.15-2,479.30

Finding the Fourth Proportional to 4,945.30, 7,416.15 and 2,479.30

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Solution

The fourth proportional to 4,945.30, 7,416.15 and 2,479.30 is: 3,718.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,945.30 : 7,416.15 = 2,479.30 : x
  2. Step 2: Convert to fraction form
    4,945.30/7,416.15 = 2,479.30/x
  3. Step 3: Cross multiply
    4,945.30x = 7,416.15 × 2,479.30
  4. Step 4: Simplify right side
    4,945.30x = 18,386,860.70
  5. Step 5: Solve for x
    x = 18,386,860.70/4,945.30
  6. Step 6: Final answer
    x = 3,718.05

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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.