Home / 3,627.60-5,439.51-1,678.14

Finding the Fourth Proportional to 3,627.60, 5,439.51 and 1,678.14

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Solution

The fourth proportional to 3,627.60, 5,439.51 and 1,678.14 is: 2,516.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,627.60 : 5,439.51 = 1,678.14 : x
  2. Step 2: Convert to fraction form
    3,627.60/5,439.51 = 1,678.14/x
  3. Step 3: Cross multiply
    3,627.60x = 5,439.51 × 1,678.14
  4. Step 4: Simplify right side
    3,627.60x = 9,128,259.31
  5. Step 5: Solve for x
    x = 9,128,259.31/3,627.60
  6. Step 6: Final answer
    x = 2,516.34

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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.