Home / 1,277.20-1,751.24-1,152.37

Finding the Fourth Proportional to 1,277.20, 1,751.24 and 1,152.37

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Solution

The fourth proportional to 1,277.20, 1,751.24 and 1,152.37 is: 1,580.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277.20 : 1,751.24 = 1,152.37 : x
  2. Step 2: Convert to fraction form
    1,277.20/1,751.24 = 1,152.37/x
  3. Step 3: Cross multiply
    1,277.20x = 1,751.24 × 1,152.37
  4. Step 4: Simplify right side
    1,277.20x = 2,018,076.44
  5. Step 5: Solve for x
    x = 2,018,076.44/1,277.20
  6. Step 6: Final answer
    x = 1,580.08

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.