Home / 4,890.13-7,335.68-1,380.37

Finding the Fourth Proportional to 4,890.13, 7,335.68 and 1,380.37

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Solution

The fourth proportional to 4,890.13, 7,335.68 and 1,380.37 is: 2,070.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,890.13 : 7,335.68 = 1,380.37 : x
  2. Step 2: Convert to fraction form
    4,890.13/7,335.68 = 1,380.37/x
  3. Step 3: Cross multiply
    4,890.13x = 7,335.68 × 1,380.37
  4. Step 4: Simplify right side
    4,890.13x = 10,125,952.60
  5. Step 5: Solve for x
    x = 10,125,952.60/4,890.13
  6. Step 6: Final answer
    x = 2,070.69

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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.