Home / 4,613.40-6,921.18-1,326.42

Finding the Fourth Proportional to 4,613.40, 6,921.18 and 1,326.42

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Solution

The fourth proportional to 4,613.40, 6,921.18 and 1,326.42 is: 1,989.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,613.40 : 6,921.18 = 1,326.42 : x
  2. Step 2: Convert to fraction form
    4,613.40/6,921.18 = 1,326.42/x
  3. Step 3: Cross multiply
    4,613.40x = 6,921.18 × 1,326.42
  4. Step 4: Simplify right side
    4,613.40x = 9,180,391.58
  5. Step 5: Solve for x
    x = 9,180,391.58/4,613.40
  6. Step 6: Final answer
    x = 1,989.94

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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.