Home / 1,899.78-2,621.43-1,527.90

Finding the Fourth Proportional to 1,899.78, 2,621.43 and 1,527.90

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Solution

The fourth proportional to 1,899.78, 2,621.43 and 1,527.90 is: 2,108.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,899.78 : 2,621.43 = 1,527.90 : x
  2. Step 2: Convert to fraction form
    1,899.78/2,621.43 = 1,527.90/x
  3. Step 3: Cross multiply
    1,899.78x = 2,621.43 × 1,527.90
  4. Step 4: Simplify right side
    1,899.78x = 4,005,282.90
  5. Step 5: Solve for x
    x = 4,005,282.90/1,899.78
  6. Step 6: Final answer
    x = 2,108.29

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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.