Home / 4,613.12-6,919.50-1,326.20

Finding the Fourth Proportional to 4,613.12, 6,919.50 and 1,326.20

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Solution

The fourth proportional to 4,613.12, 6,919.50 and 1,326.20 is: 1,989.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,613.12 : 6,919.50 = 1,326.20 : x
  2. Step 2: Convert to fraction form
    4,613.12/6,919.50 = 1,326.20/x
  3. Step 3: Cross multiply
    4,613.12x = 6,919.50 × 1,326.20
  4. Step 4: Simplify right side
    4,613.12x = 9,176,640.90
  5. Step 5: Solve for x
    x = 9,176,640.90/4,613.12
  6. Step 6: Final answer
    x = 1,989.25

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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.