Home / 3,675.64-5,076.78-2,679.32

Finding the Fourth Proportional to 3,675.64, 5,076.78 and 2,679.32

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Solution

The fourth proportional to 3,675.64, 5,076.78 and 2,679.32 is: 3,700.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,675.64 : 5,076.78 = 2,679.32 : x
  2. Step 2: Convert to fraction form
    3,675.64/5,076.78 = 2,679.32/x
  3. Step 3: Cross multiply
    3,675.64x = 5,076.78 × 2,679.32
  4. Step 4: Simplify right side
    3,675.64x = 13,602,318.19
  5. Step 5: Solve for x
    x = 13,602,318.19/3,675.64
  6. Step 6: Final answer
    x = 3,700.67

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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.