Home / 2,154,658.59-2,972,877.79-1,369,438.11

Finding the Fourth Proportional to 2,154,658.59, 2,972,877.79 and 1,369,438.11

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Solution

The fourth proportional to 2,154,658.59, 2,972,877.79 and 1,369,438.11 is: 1,889,474.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154,658.59 : 2,972,877.79 = 1,369,438.11 : x
  2. Step 2: Convert to fraction form
    2,154,658.59/2,972,877.79 = 1,369,438.11/x
  3. Step 3: Cross multiply
    2,154,658.59x = 2,972,877.79 × 1,369,438.11
  4. Step 4: Simplify right side
    2,154,658.59x = 4,071,172,141,998.58
  5. Step 5: Solve for x
    x = 4,071,172,141,998.58/2,154,658.59
  6. Step 6: Final answer
    x = 1,889,474.35

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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.