Home / 1,687.83-2,528.70-1,586.17

Finding the Fourth Proportional to 1,687.83, 2,528.70 and 1,586.17

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Solution

The fourth proportional to 1,687.83, 2,528.70 and 1,586.17 is: 2,376.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687.83 : 2,528.70 = 1,586.17 : x
  2. Step 2: Convert to fraction form
    1,687.83/2,528.70 = 1,586.17/x
  3. Step 3: Cross multiply
    1,687.83x = 2,528.70 × 1,586.17
  4. Step 4: Simplify right side
    1,687.83x = 4,010,948.08
  5. Step 5: Solve for x
    x = 4,010,948.08/1,687.83
  6. Step 6: Final answer
    x = 2,376.39

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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.