Home / 1,985.54-2,740.03-1,101.34

Finding the Fourth Proportional to 1,985.54, 2,740.03 and 1,101.34

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Solution

The fourth proportional to 1,985.54, 2,740.03 and 1,101.34 is: 1,519.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985.54 : 2,740.03 = 1,101.34 : x
  2. Step 2: Convert to fraction form
    1,985.54/2,740.03 = 1,101.34/x
  3. Step 3: Cross multiply
    1,985.54x = 2,740.03 × 1,101.34
  4. Step 4: Simplify right side
    1,985.54x = 3,017,690.94
  5. Step 5: Solve for x
    x = 3,017,690.94/1,985.54
  6. Step 6: Final answer
    x = 1,519.84

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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.