Home / 4,959.40-7,421.90-3,910.60

Finding the Fourth Proportional to 4,959.40, 7,421.90 and 3,910.60

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Solution

The fourth proportional to 4,959.40, 7,421.90 and 3,910.60 is: 5,852.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,959.40 : 7,421.90 = 3,910.60 : x
  2. Step 2: Convert to fraction form
    4,959.40/7,421.90 = 3,910.60/x
  3. Step 3: Cross multiply
    4,959.40x = 7,421.90 × 3,910.60
  4. Step 4: Simplify right side
    4,959.40x = 29,024,082.14
  5. Step 5: Solve for x
    x = 29,024,082.14/4,959.40
  6. Step 6: Final answer
    x = 5,852.34

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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.