Home / 6,531.51-9,798.72-2,148.78

Finding the Fourth Proportional to 6,531.51, 9,798.72 and 2,148.78

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Solution

The fourth proportional to 6,531.51, 9,798.72 and 2,148.78 is: 3,223.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,531.51 : 9,798.72 = 2,148.78 : x
  2. Step 2: Convert to fraction form
    6,531.51/9,798.72 = 2,148.78/x
  3. Step 3: Cross multiply
    6,531.51x = 9,798.72 × 2,148.78
  4. Step 4: Simplify right side
    6,531.51x = 21,055,293.56
  5. Step 5: Solve for x
    x = 21,055,293.56/6,531.51
  6. Step 6: Final answer
    x = 3,223.65

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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.