Home / 6,477.38-9,716.04-2,782.20

Finding the Fourth Proportional to 6,477.38, 9,716.04 and 2,782.20

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Solution

The fourth proportional to 6,477.38, 9,716.04 and 2,782.20 is: 4,173.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,477.38 : 9,716.04 = 2,782.20 : x
  2. Step 2: Convert to fraction form
    6,477.38/9,716.04 = 2,782.20/x
  3. Step 3: Cross multiply
    6,477.38x = 9,716.04 × 2,782.20
  4. Step 4: Simplify right side
    6,477.38x = 27,031,966.49
  5. Step 5: Solve for x
    x = 27,031,966.49/6,477.38
  6. Step 6: Final answer
    x = 4,173.29

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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.