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Finding the Fourth Proportional to 1,845.69, 2,558.05 and 1,811.13

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Solution

The fourth proportional to 1,845.69, 2,558.05 and 1,811.13 is: 2,510.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,845.69 : 2,558.05 = 1,811.13 : x
  2. Step 2: Convert to fraction form
    1,845.69/2,558.05 = 1,811.13/x
  3. Step 3: Cross multiply
    1,845.69x = 2,558.05 × 1,811.13
  4. Step 4: Simplify right side
    1,845.69x = 4,632,956.57
  5. Step 5: Solve for x
    x = 4,632,956.57/1,845.69
  6. Step 6: Final answer
    x = 2,510.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.