Home / 3,557.31-5,343.45-2,171.40

Finding the Fourth Proportional to 3,557.31, 5,343.45 and 2,171.40

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Solution

The fourth proportional to 3,557.31, 5,343.45 and 2,171.40 is: 3,261.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,557.31 : 5,343.45 = 2,171.40 : x
  2. Step 2: Convert to fraction form
    3,557.31/5,343.45 = 2,171.40/x
  3. Step 3: Cross multiply
    3,557.31x = 5,343.45 × 2,171.40
  4. Step 4: Simplify right side
    3,557.31x = 11,602,767.33
  5. Step 5: Solve for x
    x = 11,602,767.33/3,557.31
  6. Step 6: Final answer
    x = 3,261.67

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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.