Home / 6,889.98-10,335.03-1,959.78

Finding the Fourth Proportional to 6,889.98, 10,335.03 and 1,959.78

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Solution

The fourth proportional to 6,889.98, 10,335.03 and 1,959.78 is: 2,939.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,889.98 : 10,335.03 = 1,959.78 : x
  2. Step 2: Convert to fraction form
    6,889.98/10,335.03 = 1,959.78/x
  3. Step 3: Cross multiply
    6,889.98x = 10,335.03 × 1,959.78
  4. Step 4: Simplify right side
    6,889.98x = 20,254,385.09
  5. Step 5: Solve for x
    x = 20,254,385.09/6,889.98
  6. Step 6: Final answer
    x = 2,939.69

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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.