Home / 4,287.29-6,431.71-1,515.58

Finding the Fourth Proportional to 4,287.29, 6,431.71 and 1,515.58

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Solution

The fourth proportional to 4,287.29, 6,431.71 and 1,515.58 is: 2,273.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,287.29 : 6,431.71 = 1,515.58 : x
  2. Step 2: Convert to fraction form
    4,287.29/6,431.71 = 1,515.58/x
  3. Step 3: Cross multiply
    4,287.29x = 6,431.71 × 1,515.58
  4. Step 4: Simplify right side
    4,287.29x = 9,747,751.17
  5. Step 5: Solve for x
    x = 9,747,751.17/4,287.29
  6. Step 6: Final answer
    x = 2,273.64

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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.