Home / 1,857.40-2,562.24-1,608.64

Finding the Fourth Proportional to 1,857.40, 2,562.24 and 1,608.64

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Solution

The fourth proportional to 1,857.40, 2,562.24 and 1,608.64 is: 2,219.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,857.40 : 2,562.24 = 1,608.64 : x
  2. Step 2: Convert to fraction form
    1,857.40/2,562.24 = 1,608.64/x
  3. Step 3: Cross multiply
    1,857.40x = 2,562.24 × 1,608.64
  4. Step 4: Simplify right side
    1,857.40x = 4,121,721.75
  5. Step 5: Solve for x
    x = 4,121,721.75/1,857.40
  6. Step 6: Final answer
    x = 2,219.08

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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.