Home / 4,868.20-7,307.10-2,405.80

Finding the Fourth Proportional to 4,868.20, 7,307.10 and 2,405.80

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Solution

The fourth proportional to 4,868.20, 7,307.10 and 2,405.80 is: 3,611.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,868.20 : 7,307.10 = 2,405.80 : x
  2. Step 2: Convert to fraction form
    4,868.20/7,307.10 = 2,405.80/x
  3. Step 3: Cross multiply
    4,868.20x = 7,307.10 × 2,405.80
  4. Step 4: Simplify right side
    4,868.20x = 17,579,421.18
  5. Step 5: Solve for x
    x = 17,579,421.18/4,868.20
  6. Step 6: Final answer
    x = 3,611.07

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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.