Home / 1,559.24-2,151.71-851.08

Finding the Fourth Proportional to 1,559.24, 2,151.71 and 851.08

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Solution

The fourth proportional to 1,559.24, 2,151.71 and 851.08 is: 1,174.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,559.24 : 2,151.71 = 851.08 : x
  2. Step 2: Convert to fraction form
    1,559.24/2,151.71 = 851.08/x
  3. Step 3: Cross multiply
    1,559.24x = 2,151.71 × 851.08
  4. Step 4: Simplify right side
    1,559.24x = 1,831,277.35
  5. Step 5: Solve for x
    x = 1,831,277.35/1,559.24
  6. Step 6: Final answer
    x = 1,174.47

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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.