Home / 6,428.03-8,869.74-3,776.29

Finding the Fourth Proportional to 6,428.03, 8,869.74 and 3,776.29

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Solution

The fourth proportional to 6,428.03, 8,869.74 and 3,776.29 is: 5,210.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,428.03 : 8,869.74 = 3,776.29 : x
  2. Step 2: Convert to fraction form
    6,428.03/8,869.74 = 3,776.29/x
  3. Step 3: Cross multiply
    6,428.03x = 8,869.74 × 3,776.29
  4. Step 4: Simplify right side
    6,428.03x = 33,494,674.13
  5. Step 5: Solve for x
    x = 33,494,674.13/6,428.03
  6. Step 6: Final answer
    x = 5,210.73

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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.