Home / 4,815.78-6,645.75-2,607.78

Finding the Fourth Proportional to 4,815.78, 6,645.75 and 2,607.78

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Solution

The fourth proportional to 4,815.78, 6,645.75 and 2,607.78 is: 3,598.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,815.78 : 6,645.75 = 2,607.78 : x
  2. Step 2: Convert to fraction form
    4,815.78/6,645.75 = 2,607.78/x
  3. Step 3: Cross multiply
    4,815.78x = 6,645.75 × 2,607.78
  4. Step 4: Simplify right side
    4,815.78x = 17,330,653.94
  5. Step 5: Solve for x
    x = 17,330,653.94/4,815.78
  6. Step 6: Final answer
    x = 3,598.72

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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.