Home / 2,146,391.55-2,961,374.04-1,286,638.11

Finding the Fourth Proportional to 2,146,391.55, 2,961,374.04 and 1,286,638.11

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Solution

The fourth proportional to 2,146,391.55, 2,961,374.04 and 1,286,638.11 is: 1,775,173.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,146,391.55 : 2,961,374.04 = 1,286,638.11 : x
  2. Step 2: Convert to fraction form
    2,146,391.55/2,961,374.04 = 1,286,638.11/x
  3. Step 3: Cross multiply
    2,146,391.55x = 2,961,374.04 × 1,286,638.11
  4. Step 4: Simplify right side
    2,146,391.55x = 3,810,216,697,828.66
  5. Step 5: Solve for x
    x = 3,810,216,697,828.66/2,146,391.55
  6. Step 6: Final answer
    x = 1,775,173.17

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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.