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Finding the Fourth Proportional to 6,558.80, 9,041.04 and 5,230.40

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Solution

The fourth proportional to 6,558.80, 9,041.04 and 5,230.40 is: 7,209.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,558.80 : 9,041.04 = 5,230.40 : x
  2. Step 2: Convert to fraction form
    6,558.80/9,041.04 = 5,230.40/x
  3. Step 3: Cross multiply
    6,558.80x = 9,041.04 × 5,230.40
  4. Step 4: Simplify right side
    6,558.80x = 47,288,255.62
  5. Step 5: Solve for x
    x = 47,288,255.62/6,558.80
  6. Step 6: Final answer
    x = 7,209.89

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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.