Home / 1,550.81-2,140.67-1,027.01

Finding the Fourth Proportional to 1,550.81, 2,140.67 and 1,027.01

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Solution

The fourth proportional to 1,550.81, 2,140.67 and 1,027.01 is: 1,417.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,550.81 : 2,140.67 = 1,027.01 : x
  2. Step 2: Convert to fraction form
    1,550.81/2,140.67 = 1,027.01/x
  3. Step 3: Cross multiply
    1,550.81x = 2,140.67 × 1,027.01
  4. Step 4: Simplify right side
    1,550.81x = 2,198,481.36
  5. Step 5: Solve for x
    x = 2,198,481.36/1,550.81
  6. Step 6: Final answer
    x = 1,417.64

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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.