Home / 6,239.68-8,616.92-4,911.08

Finding the Fourth Proportional to 6,239.68, 8,616.92 and 4,911.08

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Solution

The fourth proportional to 6,239.68, 8,616.92 and 4,911.08 is: 6,782.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,239.68 : 8,616.92 = 4,911.08 : x
  2. Step 2: Convert to fraction form
    6,239.68/8,616.92 = 4,911.08/x
  3. Step 3: Cross multiply
    6,239.68x = 8,616.92 × 4,911.08
  4. Step 4: Simplify right side
    6,239.68x = 42,318,315.83
  5. Step 5: Solve for x
    x = 42,318,315.83/6,239.68
  6. Step 6: Final answer
    x = 6,782.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.