Home / 4,890.20-7,340.10-2,427.80

Finding the Fourth Proportional to 4,890.20, 7,340.10 and 2,427.80

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Solution

The fourth proportional to 4,890.20, 7,340.10 and 2,427.80 is: 3,644.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,890.20 : 7,340.10 = 2,427.80 : x
  2. Step 2: Convert to fraction form
    4,890.20/7,340.10 = 2,427.80/x
  3. Step 3: Cross multiply
    4,890.20x = 7,340.10 × 2,427.80
  4. Step 4: Simplify right side
    4,890.20x = 17,820,294.78
  5. Step 5: Solve for x
    x = 17,820,294.78/4,890.20
  6. Step 6: Final answer
    x = 3,644.08

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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.