Home / 3,678.36-5,076.60-2,281.32

Finding the Fourth Proportional to 3,678.36, 5,076.60 and 2,281.32

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Solution

The fourth proportional to 3,678.36, 5,076.60 and 2,281.32 is: 3,148.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.36 : 5,076.60 = 2,281.32 : x
  2. Step 2: Convert to fraction form
    3,678.36/5,076.60 = 2,281.32/x
  3. Step 3: Cross multiply
    3,678.36x = 5,076.60 × 2,281.32
  4. Step 4: Simplify right side
    3,678.36x = 11,581,349.11
  5. Step 5: Solve for x
    x = 11,581,349.11/3,678.36
  6. Step 6: Final answer
    x = 3,148.51

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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.