Home / 6,680.40-9,219.08-3,696.28

Finding the Fourth Proportional to 6,680.40, 9,219.08 and 3,696.28

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Solution

The fourth proportional to 6,680.40, 9,219.08 and 3,696.28 is: 5,100.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,680.40 : 9,219.08 = 3,696.28 : x
  2. Step 2: Convert to fraction form
    6,680.40/9,219.08 = 3,696.28/x
  3. Step 3: Cross multiply
    6,680.40x = 9,219.08 × 3,696.28
  4. Step 4: Simplify right side
    6,680.40x = 34,076,301.02
  5. Step 5: Solve for x
    x = 34,076,301.02/6,680.40
  6. Step 6: Final answer
    x = 5,100.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.