Home / 2,134.81-2,946.05-1,190.66

Finding the Fourth Proportional to 2,134.81, 2,946.05 and 1,190.66

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Solution

The fourth proportional to 2,134.81, 2,946.05 and 1,190.66 is: 1,643.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,134.81 : 2,946.05 = 1,190.66 : x
  2. Step 2: Convert to fraction form
    2,134.81/2,946.05 = 1,190.66/x
  3. Step 3: Cross multiply
    2,134.81x = 2,946.05 × 1,190.66
  4. Step 4: Simplify right side
    2,134.81x = 3,507,737.94
  5. Step 5: Solve for x
    x = 3,507,737.94/2,134.81
  6. Step 6: Final answer
    x = 1,643.12

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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.