Home / 7,908.41-11,853.61-2,642.18

Finding the Fourth Proportional to 7,908.41, 11,853.61 and 2,642.18

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Solution

The fourth proportional to 7,908.41, 11,853.61 and 2,642.18 is: 3,960.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,908.41 : 11,853.61 = 2,642.18 : x
  2. Step 2: Convert to fraction form
    7,908.41/11,853.61 = 2,642.18/x
  3. Step 3: Cross multiply
    7,908.41x = 11,853.61 × 2,642.18
  4. Step 4: Simplify right side
    7,908.41x = 31,319,305.40
  5. Step 5: Solve for x
    x = 31,319,305.40/7,908.41
  6. Step 6: Final answer
    x = 3,960.25

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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.