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Finding the Fourth Proportional to 1,532.90, 2,114.91 and 894.85

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Solution

The fourth proportional to 1,532.90, 2,114.91 and 894.85 is: 1,234.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,532.90 : 2,114.91 = 894.85 : x
  2. Step 2: Convert to fraction form
    1,532.90/2,114.91 = 894.85/x
  3. Step 3: Cross multiply
    1,532.90x = 2,114.91 × 894.85
  4. Step 4: Simplify right side
    1,532.90x = 1,892,521.93
  5. Step 5: Solve for x
    x = 1,892,521.93/1,532.90
  6. Step 6: Final answer
    x = 1,234.60

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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.