Home / 2,541.85-3,811.60-1,155.13

Finding the Fourth Proportional to 2,541.85, 3,811.60 and 1,155.13

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Solution

The fourth proportional to 2,541.85, 3,811.60 and 1,155.13 is: 1,732.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,541.85 : 3,811.60 = 1,155.13 : x
  2. Step 2: Convert to fraction form
    2,541.85/3,811.60 = 1,155.13/x
  3. Step 3: Cross multiply
    2,541.85x = 3,811.60 × 1,155.13
  4. Step 4: Simplify right side
    2,541.85x = 4,402,893.51
  5. Step 5: Solve for x
    x = 4,402,893.51/2,541.85
  6. Step 6: Final answer
    x = 1,732.16

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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.