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Finding the Fourth Proportional to 6,603.77, 9,898.98 and 4,140.32

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Solution

The fourth proportional to 6,603.77, 9,898.98 and 4,140.32 is: 6,206.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,603.77 : 9,898.98 = 4,140.32 : x
  2. Step 2: Convert to fraction form
    6,603.77/9,898.98 = 4,140.32/x
  3. Step 3: Cross multiply
    6,603.77x = 9,898.98 × 4,140.32
  4. Step 4: Simplify right side
    6,603.77x = 40,984,944.87
  5. Step 5: Solve for x
    x = 40,984,944.87/6,603.77
  6. Step 6: Final answer
    x = 6,206.30

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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.