Home / 7,257.78-10,868.21-4,785.10

Finding the Fourth Proportional to 7,257.78, 10,868.21 and 4,785.10

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Solution

The fourth proportional to 7,257.78, 10,868.21 and 4,785.10 is: 7,165.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,257.78 : 10,868.21 = 4,785.10 : x
  2. Step 2: Convert to fraction form
    7,257.78/10,868.21 = 4,785.10/x
  3. Step 3: Cross multiply
    7,257.78x = 10,868.21 × 4,785.10
  4. Step 4: Simplify right side
    7,257.78x = 52,005,420.57
  5. Step 5: Solve for x
    x = 52,005,420.57/7,257.78
  6. Step 6: Final answer
    x = 7,165.47

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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.