Home / 1,500.73-2,249.17-1,315.21

Finding the Fourth Proportional to 1,500.73, 2,249.17 and 1,315.21

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Solution

The fourth proportional to 1,500.73, 2,249.17 and 1,315.21 is: 1,971.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500.73 : 2,249.17 = 1,315.21 : x
  2. Step 2: Convert to fraction form
    1,500.73/2,249.17 = 1,315.21/x
  3. Step 3: Cross multiply
    1,500.73x = 2,249.17 × 1,315.21
  4. Step 4: Simplify right side
    1,500.73x = 2,958,130.88
  5. Step 5: Solve for x
    x = 2,958,130.88/1,500.73
  6. Step 6: Final answer
    x = 1,971.13

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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.