Home / 1,860.18-2,790.65-1,687.96

Finding the Fourth Proportional to 1,860.18, 2,790.65 and 1,687.96

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Solution

The fourth proportional to 1,860.18, 2,790.65 and 1,687.96 is: 2,532.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,860.18 : 2,790.65 = 1,687.96 : x
  2. Step 2: Convert to fraction form
    1,860.18/2,790.65 = 1,687.96/x
  3. Step 3: Cross multiply
    1,860.18x = 2,790.65 × 1,687.96
  4. Step 4: Simplify right side
    1,860.18x = 4,710,505.57
  5. Step 5: Solve for x
    x = 4,710,505.57/1,860.18
  6. Step 6: Final answer
    x = 2,532.28

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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.