Home / 2,715.24-4,073.36-866.80

Finding the Fourth Proportional to 2,715.24, 4,073.36 and 866.80

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Solution

The fourth proportional to 2,715.24, 4,073.36 and 866.80 is: 1,300.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,715.24 : 4,073.36 = 866.80 : x
  2. Step 2: Convert to fraction form
    2,715.24/4,073.36 = 866.80/x
  3. Step 3: Cross multiply
    2,715.24x = 4,073.36 × 866.80
  4. Step 4: Simplify right side
    2,715.24x = 3,530,788.45
  5. Step 5: Solve for x
    x = 3,530,788.45/2,715.24
  6. Step 6: Final answer
    x = 1,300.36

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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.