Home / 1,810.55-2,499.83-1,138.66

Finding the Fourth Proportional to 1,810.55, 2,499.83 and 1,138.66

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Solution

The fourth proportional to 1,810.55, 2,499.83 and 1,138.66 is: 1,572.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,810.55 : 2,499.83 = 1,138.66 : x
  2. Step 2: Convert to fraction form
    1,810.55/2,499.83 = 1,138.66/x
  3. Step 3: Cross multiply
    1,810.55x = 2,499.83 × 1,138.66
  4. Step 4: Simplify right side
    1,810.55x = 2,846,448.75
  5. Step 5: Solve for x
    x = 2,846,448.75/1,810.55
  6. Step 6: Final answer
    x = 1,572.14

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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.