Home / 1,433.50-2,150.25-885.87

Finding the Fourth Proportional to 1,433.50, 2,150.25 and 885.87

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Solution

The fourth proportional to 1,433.50, 2,150.25 and 885.87 is: 1,328.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433.50 : 2,150.25 = 885.87 : x
  2. Step 2: Convert to fraction form
    1,433.50/2,150.25 = 885.87/x
  3. Step 3: Cross multiply
    1,433.50x = 2,150.25 × 885.87
  4. Step 4: Simplify right side
    1,433.50x = 1,904,838.65
  5. Step 5: Solve for x
    x = 1,904,838.65/1,433.50
  6. Step 6: Final answer
    x = 1,328.81

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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.