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Finding the Fourth Proportional to 6,998.04, 9,655.74 and 4,165.20

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Solution

The fourth proportional to 6,998.04, 9,655.74 and 4,165.20 is: 5,747.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,998.04 : 9,655.74 = 4,165.20 : x
  2. Step 2: Convert to fraction form
    6,998.04/9,655.74 = 4,165.20/x
  3. Step 3: Cross multiply
    6,998.04x = 9,655.74 × 4,165.20
  4. Step 4: Simplify right side
    6,998.04x = 40,218,088.25
  5. Step 5: Solve for x
    x = 40,218,088.25/6,998.04
  6. Step 6: Final answer
    x = 5,747.05

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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.