Home / 6,416.11-9,621.67-1,972.45

Finding the Fourth Proportional to 6,416.11, 9,621.67 and 1,972.45

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Solution

The fourth proportional to 6,416.11, 9,621.67 and 1,972.45 is: 2,957.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,416.11 : 9,621.67 = 1,972.45 : x
  2. Step 2: Convert to fraction form
    6,416.11/9,621.67 = 1,972.45/x
  3. Step 3: Cross multiply
    6,416.11x = 9,621.67 × 1,972.45
  4. Step 4: Simplify right side
    6,416.11x = 18,978,262.99
  5. Step 5: Solve for x
    x = 18,978,262.99/6,416.11
  6. Step 6: Final answer
    x = 2,957.91

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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.