Home / 6,419.40-8,858.64-3,624.90

Finding the Fourth Proportional to 6,419.40, 8,858.64 and 3,624.90

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Solution

The fourth proportional to 6,419.40, 8,858.64 and 3,624.90 is: 5,002.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,419.40 : 8,858.64 = 3,624.90 : x
  2. Step 2: Convert to fraction form
    6,419.40/8,858.64 = 3,624.90/x
  3. Step 3: Cross multiply
    6,419.40x = 8,858.64 × 3,624.90
  4. Step 4: Simplify right side
    6,419.40x = 32,111,684.14
  5. Step 5: Solve for x
    x = 32,111,684.14/6,419.40
  6. Step 6: Final answer
    x = 5,002.29

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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.