Home / 7,747.05-10,690.94-4,210.29

Finding the Fourth Proportional to 7,747.05, 10,690.94 and 4,210.29

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Solution

The fourth proportional to 7,747.05, 10,690.94 and 4,210.29 is: 5,810.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,747.05 : 10,690.94 = 4,210.29 : x
  2. Step 2: Convert to fraction form
    7,747.05/10,690.94 = 4,210.29/x
  3. Step 3: Cross multiply
    7,747.05x = 10,690.94 × 4,210.29
  4. Step 4: Simplify right side
    7,747.05x = 45,011,936.72
  5. Step 5: Solve for x
    x = 45,011,936.72/7,747.05
  6. Step 6: Final answer
    x = 5,810.20

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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.