Home / 1,890.10-2,832.26-1,271.52

Finding the Fourth Proportional to 1,890.10, 2,832.26 and 1,271.52

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Solution

The fourth proportional to 1,890.10, 2,832.26 and 1,271.52 is: 1,905.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.10 : 2,832.26 = 1,271.52 : x
  2. Step 2: Convert to fraction form
    1,890.10/2,832.26 = 1,271.52/x
  3. Step 3: Cross multiply
    1,890.10x = 2,832.26 × 1,271.52
  4. Step 4: Simplify right side
    1,890.10x = 3,601,275.24
  5. Step 5: Solve for x
    x = 3,601,275.24/1,890.10
  6. Step 6: Final answer
    x = 1,905.34

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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.