Home / 1,771.27-2,642.63-1,638.97

Finding the Fourth Proportional to 1,771.27, 2,642.63 and 1,638.97

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Solution

The fourth proportional to 1,771.27, 2,642.63 and 1,638.97 is: 2,445.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,771.27 : 2,642.63 = 1,638.97 : x
  2. Step 2: Convert to fraction form
    1,771.27/2,642.63 = 1,638.97/x
  3. Step 3: Cross multiply
    1,771.27x = 2,642.63 × 1,638.97
  4. Step 4: Simplify right side
    1,771.27x = 4,331,176.49
  5. Step 5: Solve for x
    x = 4,331,176.49/1,771.27
  6. Step 6: Final answer
    x = 2,445.24

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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.