Home / 3,386.71-5,080.29-1,306.74

Finding the Fourth Proportional to 3,386.71, 5,080.29 and 1,306.74

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Solution

The fourth proportional to 3,386.71, 5,080.29 and 1,306.74 is: 1,960.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,386.71 : 5,080.29 = 1,306.74 : x
  2. Step 2: Convert to fraction form
    3,386.71/5,080.29 = 1,306.74/x
  3. Step 3: Cross multiply
    3,386.71x = 5,080.29 × 1,306.74
  4. Step 4: Simplify right side
    3,386.71x = 6,638,618.15
  5. Step 5: Solve for x
    x = 6,638,618.15/3,386.71
  6. Step 6: Final answer
    x = 1,960.20

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1.5x scale

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.