Home / 6,342.85-9,515.29-1,959.28

Finding the Fourth Proportional to 6,342.85, 9,515.29 and 1,959.28

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Solution

The fourth proportional to 6,342.85, 9,515.29 and 1,959.28 is: 2,939.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,342.85 : 9,515.29 = 1,959.28 : x
  2. Step 2: Convert to fraction form
    6,342.85/9,515.29 = 1,959.28/x
  3. Step 3: Cross multiply
    6,342.85x = 9,515.29 × 1,959.28
  4. Step 4: Simplify right side
    6,342.85x = 18,643,117.39
  5. Step 5: Solve for x
    x = 18,643,117.39/6,342.85
  6. Step 6: Final answer
    x = 2,939.23

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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.