Home / 4,785.40-7,171.08-3,401.40

Finding the Fourth Proportional to 4,785.40, 7,171.08 and 3,401.40

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Solution

The fourth proportional to 4,785.40, 7,171.08 and 3,401.40 is: 5,097.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,785.40 : 7,171.08 = 3,401.40 : x
  2. Step 2: Convert to fraction form
    4,785.40/7,171.08 = 3,401.40/x
  3. Step 3: Cross multiply
    4,785.40x = 7,171.08 × 3,401.40
  4. Step 4: Simplify right side
    4,785.40x = 24,391,711.51
  5. Step 5: Solve for x
    x = 24,391,711.51/4,785.40
  6. Step 6: Final answer
    x = 5,097.11

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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.