Home / 1,771.67-2,445.33-1,109.30

Finding the Fourth Proportional to 1,771.67, 2,445.33 and 1,109.30

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Solution

The fourth proportional to 1,771.67, 2,445.33 and 1,109.30 is: 1,531.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,771.67 : 2,445.33 = 1,109.30 : x
  2. Step 2: Convert to fraction form
    1,771.67/2,445.33 = 1,109.30/x
  3. Step 3: Cross multiply
    1,771.67x = 2,445.33 × 1,109.30
  4. Step 4: Simplify right side
    1,771.67x = 2,712,604.57
  5. Step 5: Solve for x
    x = 2,712,604.57/1,771.67
  6. Step 6: Final answer
    x = 1,531.10

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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.