Home / 1,469.10-2,191.94-1,277.10

Finding the Fourth Proportional to 1,469.10, 2,191.94 and 1,277.10

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Solution

The fourth proportional to 1,469.10, 2,191.94 and 1,277.10 is: 1,905.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,469.10 : 2,191.94 = 1,277.10 : x
  2. Step 2: Convert to fraction form
    1,469.10/2,191.94 = 1,277.10/x
  3. Step 3: Cross multiply
    1,469.10x = 2,191.94 × 1,277.10
  4. Step 4: Simplify right side
    1,469.10x = 2,799,320.19
  5. Step 5: Solve for x
    x = 2,799,320.19/1,469.10
  6. Step 6: Final answer
    x = 1,905.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.