Home / 1,899.68-2,621.56-1,103.16

Finding the Fourth Proportional to 1,899.68, 2,621.56 and 1,103.16

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Solution

The fourth proportional to 1,899.68, 2,621.56 and 1,103.16 is: 1,522.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,899.68 : 2,621.56 = 1,103.16 : x
  2. Step 2: Convert to fraction form
    1,899.68/2,621.56 = 1,103.16/x
  3. Step 3: Cross multiply
    1,899.68x = 2,621.56 × 1,103.16
  4. Step 4: Simplify right side
    1,899.68x = 2,892,000.13
  5. Step 5: Solve for x
    x = 2,892,000.13/1,899.68
  6. Step 6: Final answer
    x = 1,522.36

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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.