Home / 1,500.36-2,250.63-720.52

Finding the Fourth Proportional to 1,500.36, 2,250.63 and 720.52

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Solution

The fourth proportional to 1,500.36, 2,250.63 and 720.52 is: 1,080.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500.36 : 2,250.63 = 720.52 : x
  2. Step 2: Convert to fraction form
    1,500.36/2,250.63 = 720.52/x
  3. Step 3: Cross multiply
    1,500.36x = 2,250.63 × 720.52
  4. Step 4: Simplify right side
    1,500.36x = 1,621,623.93
  5. Step 5: Solve for x
    x = 1,621,623.93/1,500.36
  6. Step 6: Final answer
    x = 1,080.82

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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.