Home / 7,908.08-11,858.09-2,641.20

Finding the Fourth Proportional to 7,908.08, 11,858.09 and 2,641.20

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Solution

The fourth proportional to 7,908.08, 11,858.09 and 2,641.20 is: 3,960.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,908.08 : 11,858.09 = 2,641.20 : x
  2. Step 2: Convert to fraction form
    7,908.08/11,858.09 = 2,641.20/x
  3. Step 3: Cross multiply
    7,908.08x = 11,858.09 × 2,641.20
  4. Step 4: Simplify right side
    7,908.08x = 31,319,587.31
  5. Step 5: Solve for x
    x = 31,319,587.31/7,908.08
  6. Step 6: Final answer
    x = 3,960.45

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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.