Home / 6,421.59-8,862.66-3,771.27

Finding the Fourth Proportional to 6,421.59, 8,862.66 and 3,771.27

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Solution

The fourth proportional to 6,421.59, 8,862.66 and 3,771.27 is: 5,204.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,421.59 : 8,862.66 = 3,771.27 : x
  2. Step 2: Convert to fraction form
    6,421.59/8,862.66 = 3,771.27/x
  3. Step 3: Cross multiply
    6,421.59x = 8,862.66 × 3,771.27
  4. Step 4: Simplify right side
    6,421.59x = 33,423,483.78
  5. Step 5: Solve for x
    x = 33,423,483.78/6,421.59
  6. Step 6: Final answer
    x = 5,204.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.