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Finding the Fourth Proportional to 6,617.58, 9,130.37 and 4,098.89

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Solution

The fourth proportional to 6,617.58, 9,130.37 and 4,098.89 is: 5,655.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,617.58 : 9,130.37 = 4,098.89 : x
  2. Step 2: Convert to fraction form
    6,617.58/9,130.37 = 4,098.89/x
  3. Step 3: Cross multiply
    6,617.58x = 9,130.37 × 4,098.89
  4. Step 4: Simplify right side
    6,617.58x = 37,424,316.14
  5. Step 5: Solve for x
    x = 37,424,316.14/6,617.58
  6. Step 6: Final answer
    x = 5,655.29

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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.