Home / 3,626.47-5,438.17-1,287.06

Finding the Fourth Proportional to 3,626.47, 5,438.17 and 1,287.06

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Solution

The fourth proportional to 3,626.47, 5,438.17 and 1,287.06 is: 1,930.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,626.47 : 5,438.17 = 1,287.06 : x
  2. Step 2: Convert to fraction form
    3,626.47/5,438.17 = 1,287.06/x
  3. Step 3: Cross multiply
    3,626.47x = 5,438.17 × 1,287.06
  4. Step 4: Simplify right side
    3,626.47x = 6,999,275.47
  5. Step 5: Solve for x
    x = 6,999,275.47/3,626.47
  6. Step 6: Final answer
    x = 1,930.05

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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.