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Finding the Fourth Proportional to 6,598.13, 9,898.61 and 1,918.22

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Solution

The fourth proportional to 6,598.13, 9,898.61 and 1,918.22 is: 2,877.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,598.13 : 9,898.61 = 1,918.22 : x
  2. Step 2: Convert to fraction form
    6,598.13/9,898.61 = 1,918.22/x
  3. Step 3: Cross multiply
    6,598.13x = 9,898.61 × 1,918.22
  4. Step 4: Simplify right side
    6,598.13x = 18,987,652.59
  5. Step 5: Solve for x
    x = 18,987,652.59/6,598.13
  6. Step 6: Final answer
    x = 2,877.73

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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.