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Finding the Fourth Proportional to 6,603.80, 9,891.30 and 5,739.80

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Solution

The fourth proportional to 6,603.80, 9,891.30 and 5,739.80 is: 8,597.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,603.80 : 9,891.30 = 5,739.80 : x
  2. Step 2: Convert to fraction form
    6,603.80/9,891.30 = 5,739.80/x
  3. Step 3: Cross multiply
    6,603.80x = 9,891.30 × 5,739.80
  4. Step 4: Simplify right side
    6,603.80x = 56,774,083.74
  5. Step 5: Solve for x
    x = 56,774,083.74/6,603.80
  6. Step 6: Final answer
    x = 8,597.18

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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.