Home / 6,416.84-8,855.16-3,622.40

Finding the Fourth Proportional to 6,416.84, 8,855.16 and 3,622.40

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Solution

The fourth proportional to 6,416.84, 8,855.16 and 3,622.40 is: 4,998.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,416.84 : 8,855.16 = 3,622.40 : x
  2. Step 2: Convert to fraction form
    6,416.84/8,855.16 = 3,622.40/x
  3. Step 3: Cross multiply
    6,416.84x = 8,855.16 × 3,622.40
  4. Step 4: Simplify right side
    6,416.84x = 32,076,931.58
  5. Step 5: Solve for x
    x = 32,076,931.58/6,416.84
  6. Step 6: Final answer
    x = 4,998.87

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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.