Home / 4,952.20-7,421.10-4,217.80

Finding the Fourth Proportional to 4,952.20, 7,421.10 and 4,217.80

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Solution

The fourth proportional to 4,952.20, 7,421.10 and 4,217.80 is: 6,320.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,952.20 : 7,421.10 = 4,217.80 : x
  2. Step 2: Convert to fraction form
    4,952.20/7,421.10 = 4,217.80/x
  3. Step 3: Cross multiply
    4,952.20x = 7,421.10 × 4,217.80
  4. Step 4: Simplify right side
    4,952.20x = 31,300,715.58
  5. Step 5: Solve for x
    x = 31,300,715.58/4,952.20
  6. Step 6: Final answer
    x = 6,320.57

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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.