Home / 1,427.86-2,134.79-1,210.92

Finding the Fourth Proportional to 1,427.86, 2,134.79 and 1,210.92

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Solution

The fourth proportional to 1,427.86, 2,134.79 and 1,210.92 is: 1,810.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427.86 : 2,134.79 = 1,210.92 : x
  2. Step 2: Convert to fraction form
    1,427.86/2,134.79 = 1,210.92/x
  3. Step 3: Cross multiply
    1,427.86x = 2,134.79 × 1,210.92
  4. Step 4: Simplify right side
    1,427.86x = 2,585,050.39
  5. Step 5: Solve for x
    x = 2,585,050.39/1,427.86
  6. Step 6: Final answer
    x = 1,810.44

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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.