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Finding the Fourth Proportional to 4,689.88, 6,453.19 and 4,528.28

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Solution

The fourth proportional to 4,689.88, 6,453.19 and 4,528.28 is: 6,230.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,689.88 : 6,453.19 = 4,528.28 : x
  2. Step 2: Convert to fraction form
    4,689.88/6,453.19 = 4,528.28/x
  3. Step 3: Cross multiply
    4,689.88x = 6,453.19 × 4,528.28
  4. Step 4: Simplify right side
    4,689.88x = 29,221,851.21
  5. Step 5: Solve for x
    x = 29,221,851.21/4,689.88
  6. Step 6: Final answer
    x = 6,230.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.