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Finding the Fourth Proportional to 1,969.01, 2,717.05 and 1,084.76

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Solution

The fourth proportional to 1,969.01, 2,717.05 and 1,084.76 is: 1,496.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,969.01 : 2,717.05 = 1,084.76 : x
  2. Step 2: Convert to fraction form
    1,969.01/2,717.05 = 1,084.76/x
  3. Step 3: Cross multiply
    1,969.01x = 2,717.05 × 1,084.76
  4. Step 4: Simplify right side
    1,969.01x = 2,947,328.15
  5. Step 5: Solve for x
    x = 2,947,328.15/1,969.01
  6. Step 6: Final answer
    x = 1,496.86

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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.