Home / 4,877.60-7,310.46-3,315.20

Finding the Fourth Proportional to 4,877.60, 7,310.46 and 3,315.20

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Solution

The fourth proportional to 4,877.60, 7,310.46 and 3,315.20 is: 4,968.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,877.60 : 7,310.46 = 3,315.20 : x
  2. Step 2: Convert to fraction form
    4,877.60/7,310.46 = 3,315.20/x
  3. Step 3: Cross multiply
    4,877.60x = 7,310.46 × 3,315.20
  4. Step 4: Simplify right side
    4,877.60x = 24,235,636.99
  5. Step 5: Solve for x
    x = 24,235,636.99/4,877.60
  6. Step 6: Final answer
    x = 4,968.76

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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.