Home / 6,521.13-9,782.28-2,138.49

Finding the Fourth Proportional to 6,521.13, 9,782.28 and 2,138.49

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Solution

The fourth proportional to 6,521.13, 9,782.28 and 2,138.49 is: 3,207.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,521.13 : 9,782.28 = 2,138.49 : x
  2. Step 2: Convert to fraction form
    6,521.13/9,782.28 = 2,138.49/x
  3. Step 3: Cross multiply
    6,521.13x = 9,782.28 × 2,138.49
  4. Step 4: Simplify right side
    6,521.13x = 20,919,307.96
  5. Step 5: Solve for x
    x = 20,919,307.96/6,521.13
  6. Step 6: Final answer
    x = 3,207.93

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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.