Home / 3,627.18-5,438.34-1,678.32

Finding the Fourth Proportional to 3,627.18, 5,438.34 and 1,678.32

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Solution

The fourth proportional to 3,627.18, 5,438.34 and 1,678.32 is: 2,516.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,627.18 : 5,438.34 = 1,678.32 : x
  2. Step 2: Convert to fraction form
    3,627.18/5,438.34 = 1,678.32/x
  3. Step 3: Cross multiply
    3,627.18x = 5,438.34 × 1,678.32
  4. Step 4: Simplify right side
    3,627.18x = 9,127,274.79
  5. Step 5: Solve for x
    x = 9,127,274.79/3,627.18
  6. Step 6: Final answer
    x = 2,516.36

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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.