Home / 1,532.85-2,114.69-934.86

Finding the Fourth Proportional to 1,532.85, 2,114.69 and 934.86

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Solution

The fourth proportional to 1,532.85, 2,114.69 and 934.86 is: 1,289.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,532.85 : 2,114.69 = 934.86 : x
  2. Step 2: Convert to fraction form
    1,532.85/2,114.69 = 934.86/x
  3. Step 3: Cross multiply
    1,532.85x = 2,114.69 × 934.86
  4. Step 4: Simplify right side
    1,532.85x = 1,976,939.09
  5. Step 5: Solve for x
    x = 1,976,939.09/1,532.85
  6. Step 6: Final answer
    x = 1,289.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.