Home / 6,643.10-9,970.80-3,358.50

Finding the Fourth Proportional to 6,643.10, 9,970.80 and 3,358.50

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Solution

The fourth proportional to 6,643.10, 9,970.80 and 3,358.50 is: 5,040.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,643.10 : 9,970.80 = 3,358.50 : x
  2. Step 2: Convert to fraction form
    6,643.10/9,970.80 = 3,358.50/x
  3. Step 3: Cross multiply
    6,643.10x = 9,970.80 × 3,358.50
  4. Step 4: Simplify right side
    6,643.10x = 33,486,931.80
  5. Step 5: Solve for x
    x = 33,486,931.80/6,643.10
  6. Step 6: Final answer
    x = 5,040.86

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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.