Home / 2,272.10-3,135.65-1,277.33

Finding the Fourth Proportional to 2,272.10, 3,135.65 and 1,277.33

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Solution

The fourth proportional to 2,272.10, 3,135.65 and 1,277.33 is: 1,762.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,272.10 : 3,135.65 = 1,277.33 : x
  2. Step 2: Convert to fraction form
    2,272.10/3,135.65 = 1,277.33/x
  3. Step 3: Cross multiply
    2,272.10x = 3,135.65 × 1,277.33
  4. Step 4: Simplify right side
    2,272.10x = 4,005,237.75
  5. Step 5: Solve for x
    x = 4,005,237.75/2,272.10
  6. Step 6: Final answer
    x = 1,762.80

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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.