Home / 2,217.28-3,059.64-1,507.68

Finding the Fourth Proportional to 2,217.28, 3,059.64 and 1,507.68

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Solution

The fourth proportional to 2,217.28, 3,059.64 and 1,507.68 is: 2,080.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,217.28 : 3,059.64 = 1,507.68 : x
  2. Step 2: Convert to fraction form
    2,217.28/3,059.64 = 1,507.68/x
  3. Step 3: Cross multiply
    2,217.28x = 3,059.64 × 1,507.68
  4. Step 4: Simplify right side
    2,217.28x = 4,612,958.04
  5. Step 5: Solve for x
    x = 4,612,958.04/2,217.28
  6. Step 6: Final answer
    x = 2,080.46

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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.