Home / 3,386.34-5,080.29-1,306.36

Finding the Fourth Proportional to 3,386.34, 5,080.29 and 1,306.36

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Solution

The fourth proportional to 3,386.34, 5,080.29 and 1,306.36 is: 1,959.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,386.34 : 5,080.29 = 1,306.36 : x
  2. Step 2: Convert to fraction form
    3,386.34/5,080.29 = 1,306.36/x
  3. Step 3: Cross multiply
    3,386.34x = 5,080.29 × 1,306.36
  4. Step 4: Simplify right side
    3,386.34x = 6,636,689.10
  5. Step 5: Solve for x
    x = 6,636,689.10/3,386.34
  6. Step 6: Final answer
    x = 1,959.84

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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.