Home / 2,155,631.94-2,974,730.67-1,188,851.58

Finding the Fourth Proportional to 2,155,631.94, 2,974,730.67 and 1,188,851.58

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Solution

The fourth proportional to 2,155,631.94, 2,974,730.67 and 1,188,851.58 is: 1,640,592.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155,631.94 : 2,974,730.67 = 1,188,851.58 : x
  2. Step 2: Convert to fraction form
    2,155,631.94/2,974,730.67 = 1,188,851.58/x
  3. Step 3: Cross multiply
    2,155,631.94x = 2,974,730.67 × 1,188,851.58
  4. Step 4: Simplify right side
    2,155,631.94x = 3,536,513,257,103.96
  5. Step 5: Solve for x
    x = 3,536,513,257,103.96/2,155,631.94
  6. Step 6: Final answer
    x = 1,640,592.34

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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.