Home / 6,636.30-9,155.03-4,279.20

Finding the Fourth Proportional to 6,636.30, 9,155.03 and 4,279.20

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Solution

The fourth proportional to 6,636.30, 9,155.03 and 4,279.20 is: 5,903.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,636.30 : 9,155.03 = 4,279.20 : x
  2. Step 2: Convert to fraction form
    6,636.30/9,155.03 = 4,279.20/x
  3. Step 3: Cross multiply
    6,636.30x = 9,155.03 × 4,279.20
  4. Step 4: Simplify right side
    6,636.30x = 39,176,182.98
  5. Step 5: Solve for x
    x = 39,176,182.98/6,636.30
  6. Step 6: Final answer
    x = 5,903.32

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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.