Home / 5,087.08-7,022.72-4,815.76

Finding the Fourth Proportional to 5,087.08, 7,022.72 and 4,815.76

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Solution

The fourth proportional to 5,087.08, 7,022.72 and 4,815.76 is: 6,648.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.08 : 7,022.72 = 4,815.76 : x
  2. Step 2: Convert to fraction form
    5,087.08/7,022.72 = 4,815.76/x
  3. Step 3: Cross multiply
    5,087.08x = 7,022.72 × 4,815.76
  4. Step 4: Simplify right side
    5,087.08x = 33,819,734.07
  5. Step 5: Solve for x
    x = 33,819,734.07/5,087.08
  6. Step 6: Final answer
    x = 6,648.16

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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.