Home / 8,985.42-13,480.74-3,719.46

Finding the Fourth Proportional to 8,985.42, 13,480.74 and 3,719.46

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Solution

The fourth proportional to 8,985.42, 13,480.74 and 3,719.46 is: 5,580.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,985.42 : 13,480.74 = 3,719.46 : x
  2. Step 2: Convert to fraction form
    8,985.42/13,480.74 = 3,719.46/x
  3. Step 3: Cross multiply
    8,985.42x = 13,480.74 × 3,719.46
  4. Step 4: Simplify right side
    8,985.42x = 50,141,073.20
  5. Step 5: Solve for x
    x = 50,141,073.20/8,985.42
  6. Step 6: Final answer
    x = 5,580.27

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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.