Home / 7,826.09-11,740.95-2,279.31

Finding the Fourth Proportional to 7,826.09, 11,740.95 and 2,279.31

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Solution

The fourth proportional to 7,826.09, 11,740.95 and 2,279.31 is: 3,419.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,826.09 : 11,740.95 = 2,279.31 : x
  2. Step 2: Convert to fraction form
    7,826.09/11,740.95 = 2,279.31/x
  3. Step 3: Cross multiply
    7,826.09x = 11,740.95 × 2,279.31
  4. Step 4: Simplify right side
    7,826.09x = 26,761,264.74
  5. Step 5: Solve for x
    x = 26,761,264.74/7,826.09
  6. Step 6: Final answer
    x = 3,419.50

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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.