Home / 2,619.36-3,929.04-1,160

Finding the Fourth Proportional to 2,619.36, 3,929.04 and 1,160

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Solution

The fourth proportional to 2,619.36, 3,929.04 and 1,160 is: 1,740

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,619.36 : 3,929.04 = 1,160 : x
  2. Step 2: Convert to fraction form
    2,619.36/3,929.04 = 1,160/x
  3. Step 3: Cross multiply
    2,619.36x = 3,929.04 × 1,160
  4. Step 4: Simplify right side
    2,619.36x = 4,557,686.40
  5. Step 5: Solve for x
    x = 4,557,686.40/2,619.36
  6. Step 6: Final answer
    x = 1,740

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.