Home / 1,559.15-2,146.91-1,226.54

Finding the Fourth Proportional to 1,559.15, 2,146.91 and 1,226.54

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Solution

The fourth proportional to 1,559.15, 2,146.91 and 1,226.54 is: 1,688.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,559.15 : 2,146.91 = 1,226.54 : x
  2. Step 2: Convert to fraction form
    1,559.15/2,146.91 = 1,226.54/x
  3. Step 3: Cross multiply
    1,559.15x = 2,146.91 × 1,226.54
  4. Step 4: Simplify right side
    1,559.15x = 2,633,270.23
  5. Step 5: Solve for x
    x = 2,633,270.23/1,559.15
  6. Step 6: Final answer
    x = 1,688.92

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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.