Home / 6,443.40-9,666.96-3,158.40

Finding the Fourth Proportional to 6,443.40, 9,666.96 and 3,158.40

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Solution

The fourth proportional to 6,443.40, 9,666.96 and 3,158.40 is: 4,738.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,443.40 : 9,666.96 = 3,158.40 : x
  2. Step 2: Convert to fraction form
    6,443.40/9,666.96 = 3,158.40/x
  3. Step 3: Cross multiply
    6,443.40x = 9,666.96 × 3,158.40
  4. Step 4: Simplify right side
    6,443.40x = 30,532,126.46
  5. Step 5: Solve for x
    x = 30,532,126.46/6,443.40
  6. Step 6: Final answer
    x = 4,738.51

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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.