Home / 6,479.20-9,718.80-3,020.32

Finding the Fourth Proportional to 6,479.20, 9,718.80 and 3,020.32

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Solution

The fourth proportional to 6,479.20, 9,718.80 and 3,020.32 is: 4,530.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,479.20 : 9,718.80 = 3,020.32 : x
  2. Step 2: Convert to fraction form
    6,479.20/9,718.80 = 3,020.32/x
  3. Step 3: Cross multiply
    6,479.20x = 9,718.80 × 3,020.32
  4. Step 4: Simplify right side
    6,479.20x = 29,353,886.02
  5. Step 5: Solve for x
    x = 29,353,886.02/6,479.20
  6. Step 6: Final answer
    x = 4,530.48

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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.