Home / 6,619.48-9,929.22-2,721.16

Finding the Fourth Proportional to 6,619.48, 9,929.22 and 2,721.16

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Solution

The fourth proportional to 6,619.48, 9,929.22 and 2,721.16 is: 4,081.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,619.48 : 9,929.22 = 2,721.16 : x
  2. Step 2: Convert to fraction form
    6,619.48/9,929.22 = 2,721.16/x
  3. Step 3: Cross multiply
    6,619.48x = 9,929.22 × 2,721.16
  4. Step 4: Simplify right side
    6,619.48x = 27,018,996.30
  5. Step 5: Solve for x
    x = 27,018,996.30/6,619.48
  6. Step 6: Final answer
    x = 4,081.74

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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.