Home / 4,647.78-6,411.61-2,758.54

Finding the Fourth Proportional to 4,647.78, 6,411.61 and 2,758.54

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Solution

The fourth proportional to 4,647.78, 6,411.61 and 2,758.54 is: 3,805.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,647.78 : 6,411.61 = 2,758.54 : x
  2. Step 2: Convert to fraction form
    4,647.78/6,411.61 = 2,758.54/x
  3. Step 3: Cross multiply
    4,647.78x = 6,411.61 × 2,758.54
  4. Step 4: Simplify right side
    4,647.78x = 17,686,682.65
  5. Step 5: Solve for x
    x = 17,686,682.65/4,647.78
  6. Step 6: Final answer
    x = 3,805.40

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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.