Home / 2,106,855.18-2,907,438.75-1,139,964.30

Finding the Fourth Proportional to 2,106,855.18, 2,907,438.75 and 1,139,964.30

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Solution

The fourth proportional to 2,106,855.18, 2,907,438.75 and 1,139,964.30 is: 1,573,139.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,106,855.18 : 2,907,438.75 = 1,139,964.30 : x
  2. Step 2: Convert to fraction form
    2,106,855.18/2,907,438.75 = 1,139,964.30/x
  3. Step 3: Cross multiply
    2,106,855.18x = 2,907,438.75 × 1,139,964.30
  4. Step 4: Simplify right side
    2,106,855.18x = 3,314,376,379,436.63
  5. Step 5: Solve for x
    x = 3,314,376,379,436.63/2,106,855.18
  6. Step 6: Final answer
    x = 1,573,139.16

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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.