Home / 6,421.50-8,862.39-3,627.18

Finding the Fourth Proportional to 6,421.50, 8,862.39 and 3,627.18

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Solution

The fourth proportional to 6,421.50, 8,862.39 and 3,627.18 is: 5,005.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,421.50 : 8,862.39 = 3,627.18 : x
  2. Step 2: Convert to fraction form
    6,421.50/8,862.39 = 3,627.18/x
  3. Step 3: Cross multiply
    6,421.50x = 8,862.39 × 3,627.18
  4. Step 4: Simplify right side
    6,421.50x = 32,145,483.76
  5. Step 5: Solve for x
    x = 32,145,483.76/6,421.50
  6. Step 6: Final answer
    x = 5,005.92

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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.