Home / 2,153,930.46-2,972,424.05-1,187,060.76

Finding the Fourth Proportional to 2,153,930.46, 2,972,424.05 and 1,187,060.76

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Solution

The fourth proportional to 2,153,930.46, 2,972,424.05 and 1,187,060.76 is: 1,638,143.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153,930.46 : 2,972,424.05 = 1,187,060.76 : x
  2. Step 2: Convert to fraction form
    2,153,930.46/2,972,424.05 = 1,187,060.76/x
  3. Step 3: Cross multiply
    2,153,930.46x = 2,972,424.05 × 1,187,060.76
  4. Step 4: Simplify right side
    2,153,930.46x = 3,528,447,945,899.97
  5. Step 5: Solve for x
    x = 3,528,447,945,899.97/2,153,930.46
  6. Step 6: Final answer
    x = 1,638,143.85

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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.