Home / 6,530.88-9,771.84-3,888.72

Finding the Fourth Proportional to 6,530.88, 9,771.84 and 3,888.72

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Solution

The fourth proportional to 6,530.88, 9,771.84 and 3,888.72 is: 5,818.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,530.88 : 9,771.84 = 3,888.72 : x
  2. Step 2: Convert to fraction form
    6,530.88/9,771.84 = 3,888.72/x
  3. Step 3: Cross multiply
    6,530.88x = 9,771.84 × 3,888.72
  4. Step 4: Simplify right side
    6,530.88x = 37,999,949.64
  5. Step 5: Solve for x
    x = 37,999,949.64/6,530.88
  6. Step 6: Final answer
    x = 5,818.50

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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.