Home / 3,099.44-4,275.12-1,918.46

Finding the Fourth Proportional to 3,099.44, 4,275.12 and 1,918.46

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Solution

The fourth proportional to 3,099.44, 4,275.12 and 1,918.46 is: 2,646.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,099.44 : 4,275.12 = 1,918.46 : x
  2. Step 2: Convert to fraction form
    3,099.44/4,275.12 = 1,918.46/x
  3. Step 3: Cross multiply
    3,099.44x = 4,275.12 × 1,918.46
  4. Step 4: Simplify right side
    3,099.44x = 8,201,646.72
  5. Step 5: Solve for x
    x = 8,201,646.72/3,099.44
  6. Step 6: Final answer
    x = 2,646.17

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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.