Home / 1,777.36-2,453.01-1,281.64

Finding the Fourth Proportional to 1,777.36, 2,453.01 and 1,281.64

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Solution

The fourth proportional to 1,777.36, 2,453.01 and 1,281.64 is: 1,768.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,777.36 : 2,453.01 = 1,281.64 : x
  2. Step 2: Convert to fraction form
    1,777.36/2,453.01 = 1,281.64/x
  3. Step 3: Cross multiply
    1,777.36x = 2,453.01 × 1,281.64
  4. Step 4: Simplify right side
    1,777.36x = 3,143,875.74
  5. Step 5: Solve for x
    x = 3,143,875.74/1,777.36
  6. Step 6: Final answer
    x = 1,768.85

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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.