Home / 6,140.08-9,210.12-2,679.76

Finding the Fourth Proportional to 6,140.08, 9,210.12 and 2,679.76

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Solution

The fourth proportional to 6,140.08, 9,210.12 and 2,679.76 is: 4,019.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,140.08 : 9,210.12 = 2,679.76 : x
  2. Step 2: Convert to fraction form
    6,140.08/9,210.12 = 2,679.76/x
  3. Step 3: Cross multiply
    6,140.08x = 9,210.12 × 2,679.76
  4. Step 4: Simplify right side
    6,140.08x = 24,680,911.17
  5. Step 5: Solve for x
    x = 24,680,911.17/6,140.08
  6. Step 6: Final answer
    x = 4,019.64

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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.