Home / 2,591.86-3,888.54-1,206.02

Finding the Fourth Proportional to 2,591.86, 3,888.54 and 1,206.02

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Solution

The fourth proportional to 2,591.86, 3,888.54 and 1,206.02 is: 1,809.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,591.86 : 3,888.54 = 1,206.02 : x
  2. Step 2: Convert to fraction form
    2,591.86/3,888.54 = 1,206.02/x
  3. Step 3: Cross multiply
    2,591.86x = 3,888.54 × 1,206.02
  4. Step 4: Simplify right side
    2,591.86x = 4,689,657.01
  5. Step 5: Solve for x
    x = 4,689,657.01/2,591.86
  6. Step 6: Final answer
    x = 1,809.38

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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.