Home / 4,869.20-7,307.40-3,225.20

Finding the Fourth Proportional to 4,869.20, 7,307.40 and 3,225.20

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Solution

The fourth proportional to 4,869.20, 7,307.40 and 3,225.20 is: 4,840.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,869.20 : 7,307.40 = 3,225.20 : x
  2. Step 2: Convert to fraction form
    4,869.20/7,307.40 = 3,225.20/x
  3. Step 3: Cross multiply
    4,869.20x = 7,307.40 × 3,225.20
  4. Step 4: Simplify right side
    4,869.20x = 23,567,826.48
  5. Step 5: Solve for x
    x = 23,567,826.48/4,869.20
  6. Step 6: Final answer
    x = 4,840.18

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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.