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Finding the Fourth Proportional to 2,088.40, 3,133.08 and 607.66

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Solution

The fourth proportional to 2,088.40, 3,133.08 and 607.66 is: 911.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,088.40 : 3,133.08 = 607.66 : x
  2. Step 2: Convert to fraction form
    2,088.40/3,133.08 = 607.66/x
  3. Step 3: Cross multiply
    2,088.40x = 3,133.08 × 607.66
  4. Step 4: Simplify right side
    2,088.40x = 1,903,833.25
  5. Step 5: Solve for x
    x = 1,903,833.25/2,088.40
  6. Step 6: Final answer
    x = 911.62

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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.