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Finding the Fourth Proportional to 1,888.91, 2,830.90 and 963.69

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Solution

The fourth proportional to 1,888.91, 2,830.90 and 963.69 is: 1,444.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888.91 : 2,830.90 = 963.69 : x
  2. Step 2: Convert to fraction form
    1,888.91/2,830.90 = 963.69/x
  3. Step 3: Cross multiply
    1,888.91x = 2,830.90 × 963.69
  4. Step 4: Simplify right side
    1,888.91x = 2,728,110.02
  5. Step 5: Solve for x
    x = 2,728,110.02/1,888.91
  6. Step 6: Final answer
    x = 1,444.28

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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.