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Finding the Fourth Proportional to 2,188.65, 3,020.30 and 1,193.93

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Solution

The fourth proportional to 2,188.65, 3,020.30 and 1,193.93 is: 1,647.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,188.65 : 3,020.30 = 1,193.93 : x
  2. Step 2: Convert to fraction form
    2,188.65/3,020.30 = 1,193.93/x
  3. Step 3: Cross multiply
    2,188.65x = 3,020.30 × 1,193.93
  4. Step 4: Simplify right side
    2,188.65x = 3,606,026.78
  5. Step 5: Solve for x
    x = 3,606,026.78/2,188.65
  6. Step 6: Final answer
    x = 1,647.60

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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.