Home / 6,521.64-9,758.18-3,890.55

Finding the Fourth Proportional to 6,521.64, 9,758.18 and 3,890.55

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Solution

The fourth proportional to 6,521.64, 9,758.18 and 3,890.55 is: 5,821.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,521.64 : 9,758.18 = 3,890.55 : x
  2. Step 2: Convert to fraction form
    6,521.64/9,758.18 = 3,890.55/x
  3. Step 3: Cross multiply
    6,521.64x = 9,758.18 × 3,890.55
  4. Step 4: Simplify right side
    6,521.64x = 37,964,687.20
  5. Step 5: Solve for x
    x = 37,964,687.20/6,521.64
  6. Step 6: Final answer
    x = 5,821.34

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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.