Home / 6,899.06-9,519.45-3,915.02

Finding the Fourth Proportional to 6,899.06, 9,519.45 and 3,915.02

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Solution

The fourth proportional to 6,899.06, 9,519.45 and 3,915.02 is: 5,402.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,899.06 : 9,519.45 = 3,915.02 : x
  2. Step 2: Convert to fraction form
    6,899.06/9,519.45 = 3,915.02/x
  3. Step 3: Cross multiply
    6,899.06x = 9,519.45 × 3,915.02
  4. Step 4: Simplify right side
    6,899.06x = 37,268,837.14
  5. Step 5: Solve for x
    x = 37,268,837.14/6,899.06
  6. Step 6: Final answer
    x = 5,402.02

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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.