Home / 4,292.20-6,438.91-2,101.06

Finding the Fourth Proportional to 4,292.20, 6,438.91 and 2,101.06

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Solution

The fourth proportional to 4,292.20, 6,438.91 and 2,101.06 is: 3,151.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,292.20 : 6,438.91 = 2,101.06 : x
  2. Step 2: Convert to fraction form
    4,292.20/6,438.91 = 2,101.06/x
  3. Step 3: Cross multiply
    4,292.20x = 6,438.91 × 2,101.06
  4. Step 4: Simplify right side
    4,292.20x = 13,528,536.24
  5. Step 5: Solve for x
    x = 13,528,536.24/4,292.20
  6. Step 6: Final answer
    x = 3,151.89

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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.