Home / 6,220.48-9,331.80-1,838.20

Finding the Fourth Proportional to 6,220.48, 9,331.80 and 1,838.20

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Solution

The fourth proportional to 6,220.48, 9,331.80 and 1,838.20 is: 2,757.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,220.48 : 9,331.80 = 1,838.20 : x
  2. Step 2: Convert to fraction form
    6,220.48/9,331.80 = 1,838.20/x
  3. Step 3: Cross multiply
    6,220.48x = 9,331.80 × 1,838.20
  4. Step 4: Simplify right side
    6,220.48x = 17,153,714.76
  5. Step 5: Solve for x
    x = 17,153,714.76/6,220.48
  6. Step 6: Final answer
    x = 2,757.62

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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.