Home / 1,857.12-2,786.40-1,374.24

Finding the Fourth Proportional to 1,857.12, 2,786.40 and 1,374.24

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Solution

The fourth proportional to 1,857.12, 2,786.40 and 1,374.24 is: 2,061.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,857.12 : 2,786.40 = 1,374.24 : x
  2. Step 2: Convert to fraction form
    1,857.12/2,786.40 = 1,374.24/x
  3. Step 3: Cross multiply
    1,857.12x = 2,786.40 × 1,374.24
  4. Step 4: Simplify right side
    1,857.12x = 3,829,182.34
  5. Step 5: Solve for x
    x = 3,829,182.34/1,857.12
  6. Step 6: Final answer
    x = 2,061.89

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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.