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Finding the Fourth Proportional to 6,661.16, 9,200.58 and 4,990.04

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Solution

The fourth proportional to 6,661.16, 9,200.58 and 4,990.04 is: 6,892.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,661.16 : 9,200.58 = 4,990.04 : x
  2. Step 2: Convert to fraction form
    6,661.16/9,200.58 = 4,990.04/x
  3. Step 3: Cross multiply
    6,661.16x = 9,200.58 × 4,990.04
  4. Step 4: Simplify right side
    6,661.16x = 45,911,262.22
  5. Step 5: Solve for x
    x = 45,911,262.22/6,661.16
  6. Step 6: Final answer
    x = 6,892.38

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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.