Home / 6,938.10-9,577.78-4,287.06

Finding the Fourth Proportional to 6,938.10, 9,577.78 and 4,287.06

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Solution

The fourth proportional to 6,938.10, 9,577.78 and 4,287.06 is: 5,918.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,938.10 : 9,577.78 = 4,287.06 : x
  2. Step 2: Convert to fraction form
    6,938.10/9,577.78 = 4,287.06/x
  3. Step 3: Cross multiply
    6,938.10x = 9,577.78 × 4,287.06
  4. Step 4: Simplify right side
    6,938.10x = 41,060,517.53
  5. Step 5: Solve for x
    x = 41,060,517.53/6,938.10
  6. Step 6: Final answer
    x = 5,918.12

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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.