Home / 5,278.44-7,284.02-2,888.29

Finding the Fourth Proportional to 5,278.44, 7,284.02 and 2,888.29

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Solution

The fourth proportional to 5,278.44, 7,284.02 and 2,888.29 is: 3,985.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,278.44 : 7,284.02 = 2,888.29 : x
  2. Step 2: Convert to fraction form
    5,278.44/7,284.02 = 2,888.29/x
  3. Step 3: Cross multiply
    5,278.44x = 7,284.02 × 2,888.29
  4. Step 4: Simplify right side
    5,278.44x = 21,038,362.13
  5. Step 5: Solve for x
    x = 21,038,362.13/5,278.44
  6. Step 6: Final answer
    x = 3,985.72

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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.