Home / 6,626.20-9,140.08-3,935.59

Finding the Fourth Proportional to 6,626.20, 9,140.08 and 3,935.59

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Solution

The fourth proportional to 6,626.20, 9,140.08 and 3,935.59 is: 5,428.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,626.20 : 9,140.08 = 3,935.59 : x
  2. Step 2: Convert to fraction form
    6,626.20/9,140.08 = 3,935.59/x
  3. Step 3: Cross multiply
    6,626.20x = 9,140.08 × 3,935.59
  4. Step 4: Simplify right side
    6,626.20x = 35,971,607.45
  5. Step 5: Solve for x
    x = 35,971,607.45/6,626.20
  6. Step 6: Final answer
    x = 5,428.69

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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.