Home / 5,279.06-7,284.93-2,920.88

Finding the Fourth Proportional to 5,279.06, 7,284.93 and 2,920.88

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Solution

The fourth proportional to 5,279.06, 7,284.93 and 2,920.88 is: 4,030.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.06 : 7,284.93 = 2,920.88 : x
  2. Step 2: Convert to fraction form
    5,279.06/7,284.93 = 2,920.88/x
  3. Step 3: Cross multiply
    5,279.06x = 7,284.93 × 2,920.88
  4. Step 4: Simplify right side
    5,279.06x = 21,278,406.34
  5. Step 5: Solve for x
    x = 21,278,406.34/5,279.06
  6. Step 6: Final answer
    x = 4,030.72

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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.