Home / 1,501.36-2,251.68-731.68

Finding the Fourth Proportional to 1,501.36, 2,251.68 and 731.68

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Solution

The fourth proportional to 1,501.36, 2,251.68 and 731.68 is: 1,097.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,501.36 : 2,251.68 = 731.68 : x
  2. Step 2: Convert to fraction form
    1,501.36/2,251.68 = 731.68/x
  3. Step 3: Cross multiply
    1,501.36x = 2,251.68 × 731.68
  4. Step 4: Simplify right side
    1,501.36x = 1,647,509.22
  5. Step 5: Solve for x
    x = 1,647,509.22/1,501.36
  6. Step 6: Final answer
    x = 1,097.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.