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Finding the Fourth Proportional to 1,852, 2,555.80 and 1,065.92

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Solution

The fourth proportional to 1,852, 2,555.80 and 1,065.92 is: 1,470.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,852 : 2,555.80 = 1,065.92 : x
  2. Step 2: Convert to fraction form
    1,852/2,555.80 = 1,065.92/x
  3. Step 3: Cross multiply
    1,852x = 2,555.80 × 1,065.92
  4. Step 4: Simplify right side
    1,852x = 2,724,278.34
  5. Step 5: Solve for x
    x = 2,724,278.34/1,852
  6. Step 6: Final answer
    x = 1,470.99

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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.