Home / 1,985.58-2,736.92-1,565.24

Finding the Fourth Proportional to 1,985.58, 2,736.92 and 1,565.24

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Solution

The fourth proportional to 1,985.58, 2,736.92 and 1,565.24 is: 2,157.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985.58 : 2,736.92 = 1,565.24 : x
  2. Step 2: Convert to fraction form
    1,985.58/2,736.92 = 1,565.24/x
  3. Step 3: Cross multiply
    1,985.58x = 2,736.92 × 1,565.24
  4. Step 4: Simplify right side
    1,985.58x = 4,283,936.66
  5. Step 5: Solve for x
    x = 4,283,936.66/1,985.58
  6. Step 6: Final answer
    x = 2,157.52

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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.