Home / 1,843.05-2,543.40-1,057.08

Finding the Fourth Proportional to 1,843.05, 2,543.40 and 1,057.08

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Solution

The fourth proportional to 1,843.05, 2,543.40 and 1,057.08 is: 1,458.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,843.05 : 2,543.40 = 1,057.08 : x
  2. Step 2: Convert to fraction form
    1,843.05/2,543.40 = 1,057.08/x
  3. Step 3: Cross multiply
    1,843.05x = 2,543.40 × 1,057.08
  4. Step 4: Simplify right side
    1,843.05x = 2,688,577.27
  5. Step 5: Solve for x
    x = 2,688,577.27/1,843.05
  6. Step 6: Final answer
    x = 1,458.77

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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.