Home / 6,719.18-9,272.16-3,886.10

Finding the Fourth Proportional to 6,719.18, 9,272.16 and 3,886.10

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Solution

The fourth proportional to 6,719.18, 9,272.16 and 3,886.10 is: 5,362.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,719.18 : 9,272.16 = 3,886.10 : x
  2. Step 2: Convert to fraction form
    6,719.18/9,272.16 = 3,886.10/x
  3. Step 3: Cross multiply
    6,719.18x = 9,272.16 × 3,886.10
  4. Step 4: Simplify right side
    6,719.18x = 36,032,494.62
  5. Step 5: Solve for x
    x = 36,032,494.62/6,719.18
  6. Step 6: Final answer
    x = 5,362.64

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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.