Home / 3,855,118.40-5,320,436.64-2,136,795.20

Finding the Fourth Proportional to 3,855,118.40, 5,320,436.64 and 2,136,795.20

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Solution

The fourth proportional to 3,855,118.40, 5,320,436.64 and 2,136,795.20 is: 2,948,984.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855,118.40 : 5,320,436.64 = 2,136,795.20 : x
  2. Step 2: Convert to fraction form
    3,855,118.40/5,320,436.64 = 2,136,795.20/x
  3. Step 3: Cross multiply
    3,855,118.40x = 5,320,436.64 × 2,136,795.20
  4. Step 4: Simplify right side
    3,855,118.40x = 11,368,683,474,256.13
  5. Step 5: Solve for x
    x = 11,368,683,474,256.13/3,855,118.40
  6. Step 6: Final answer
    x = 2,948,984.26

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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.