Home / 3,510.68-5,266.49-1,289.21

Finding the Fourth Proportional to 3,510.68, 5,266.49 and 1,289.21

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Solution

The fourth proportional to 3,510.68, 5,266.49 and 1,289.21 is: 1,933.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,510.68 : 5,266.49 = 1,289.21 : x
  2. Step 2: Convert to fraction form
    3,510.68/5,266.49 = 1,289.21/x
  3. Step 3: Cross multiply
    3,510.68x = 5,266.49 × 1,289.21
  4. Step 4: Simplify right side
    3,510.68x = 6,789,578.79
  5. Step 5: Solve for x
    x = 6,789,578.79/3,510.68
  6. Step 6: Final answer
    x = 1,933.98

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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.