Home / 1,899.90-2,619.27-1,585.62

Finding the Fourth Proportional to 1,899.90, 2,619.27 and 1,585.62

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Solution

The fourth proportional to 1,899.90, 2,619.27 and 1,585.62 is: 2,185.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,899.90 : 2,619.27 = 1,585.62 : x
  2. Step 2: Convert to fraction form
    1,899.90/2,619.27 = 1,585.62/x
  3. Step 3: Cross multiply
    1,899.90x = 2,619.27 × 1,585.62
  4. Step 4: Simplify right side
    1,899.90x = 4,153,166.90
  5. Step 5: Solve for x
    x = 4,153,166.90/1,899.90
  6. Step 6: Final answer
    x = 2,185.99

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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.