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Finding the Fourth Proportional to 6,603.90, 9,113.62 and 3,619.74

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Solution

The fourth proportional to 6,603.90, 9,113.62 and 3,619.74 is: 4,995.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,603.90 : 9,113.62 = 3,619.74 : x
  2. Step 2: Convert to fraction form
    6,603.90/9,113.62 = 3,619.74/x
  3. Step 3: Cross multiply
    6,603.90x = 9,113.62 × 3,619.74
  4. Step 4: Simplify right side
    6,603.90x = 32,988,934.86
  5. Step 5: Solve for x
    x = 32,988,934.86/6,603.90
  6. Step 6: Final answer
    x = 4,995.37

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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.