Home / 6,416.55-8,853.44-3,900.02

Finding the Fourth Proportional to 6,416.55, 8,853.44 and 3,900.02

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Solution

The fourth proportional to 6,416.55, 8,853.44 and 3,900.02 is: 5,381.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,416.55 : 8,853.44 = 3,900.02 : x
  2. Step 2: Convert to fraction form
    6,416.55/8,853.44 = 3,900.02/x
  3. Step 3: Cross multiply
    6,416.55x = 8,853.44 × 3,900.02
  4. Step 4: Simplify right side
    6,416.55x = 34,528,529.30
  5. Step 5: Solve for x
    x = 34,528,529.30/6,416.55
  6. Step 6: Final answer
    x = 5,381.17

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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.