Home / 1,893.12-2,610.72-1,543.20

Finding the Fourth Proportional to 1,893.12, 2,610.72 and 1,543.20

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Solution

The fourth proportional to 1,893.12, 2,610.72 and 1,543.20 is: 2,128.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,893.12 : 2,610.72 = 1,543.20 : x
  2. Step 2: Convert to fraction form
    1,893.12/2,610.72 = 1,543.20/x
  3. Step 3: Cross multiply
    1,893.12x = 2,610.72 × 1,543.20
  4. Step 4: Simplify right side
    1,893.12x = 4,028,863.10
  5. Step 5: Solve for x
    x = 4,028,863.10/1,893.12
  6. Step 6: Final answer
    x = 2,128.16

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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.