Home / 1,945.70-2,684.96-1,106.29

Finding the Fourth Proportional to 1,945.70, 2,684.96 and 1,106.29

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Solution

The fourth proportional to 1,945.70, 2,684.96 and 1,106.29 is: 1,526.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,945.70 : 2,684.96 = 1,106.29 : x
  2. Step 2: Convert to fraction form
    1,945.70/2,684.96 = 1,106.29/x
  3. Step 3: Cross multiply
    1,945.70x = 2,684.96 × 1,106.29
  4. Step 4: Simplify right side
    1,945.70x = 2,970,344.40
  5. Step 5: Solve for x
    x = 2,970,344.40/1,945.70
  6. Step 6: Final answer
    x = 1,526.62

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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.