Home / 1,577.09-2,175.15-1,017.62

Finding the Fourth Proportional to 1,577.09, 2,175.15 and 1,017.62

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Solution

The fourth proportional to 1,577.09, 2,175.15 and 1,017.62 is: 1,403.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,577.09 : 2,175.15 = 1,017.62 : x
  2. Step 2: Convert to fraction form
    1,577.09/2,175.15 = 1,017.62/x
  3. Step 3: Cross multiply
    1,577.09x = 2,175.15 × 1,017.62
  4. Step 4: Simplify right side
    1,577.09x = 2,213,476.14
  5. Step 5: Solve for x
    x = 2,213,476.14/1,577.09
  6. Step 6: Final answer
    x = 1,403.52

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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.