Home / 3,880,571.10-5,355,349.50-2,161,691.16

Finding the Fourth Proportional to 3,880,571.10, 5,355,349.50 and 2,161,691.16

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Solution

The fourth proportional to 3,880,571.10, 5,355,349.50 and 2,161,691.16 is: 2,983,223.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880,571.10 : 5,355,349.50 = 2,161,691.16 : x
  2. Step 2: Convert to fraction form
    3,880,571.10/5,355,349.50 = 2,161,691.16/x
  3. Step 3: Cross multiply
    3,880,571.10x = 5,355,349.50 × 2,161,691.16
  4. Step 4: Simplify right side
    3,880,571.10x = 11,576,611,672,860.42
  5. Step 5: Solve for x
    x = 11,576,611,672,860.42/3,880,571.10
  6. Step 6: Final answer
    x = 2,983,223.70

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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.