Home / 5,278.14-7,284.02-2,920.22

Finding the Fourth Proportional to 5,278.14, 7,284.02 and 2,920.22

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Solution

The fourth proportional to 5,278.14, 7,284.02 and 2,920.22 is: 4,030.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278.14 : 7,284.02 = 2,920.22 : x
  2. Step 2: Convert to fraction form
    5,278.14/7,284.02 = 2,920.22/x
  3. Step 3: Cross multiply
    5,278.14x = 7,284.02 × 2,920.22
  4. Step 4: Simplify right side
    5,278.14x = 21,270,940.88
  5. Step 5: Solve for x
    x = 21,270,940.88/5,278.14
  6. Step 6: Final answer
    x = 4,030.01

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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.