Home / 1,775.53-2,660.86-1,126.72

Finding the Fourth Proportional to 1,775.53, 2,660.86 and 1,126.72

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Solution

The fourth proportional to 1,775.53, 2,660.86 and 1,126.72 is: 1,688.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,775.53 : 2,660.86 = 1,126.72 : x
  2. Step 2: Convert to fraction form
    1,775.53/2,660.86 = 1,126.72/x
  3. Step 3: Cross multiply
    1,775.53x = 2,660.86 × 1,126.72
  4. Step 4: Simplify right side
    1,775.53x = 2,998,025.24
  5. Step 5: Solve for x
    x = 2,998,025.24/1,775.53
  6. Step 6: Final answer
    x = 1,688.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.