Home / 2,138,548.91-2,950,822.35-1,220,358.83

Finding the Fourth Proportional to 2,138,548.91, 2,950,822.35 and 1,220,358.83

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Solution

The fourth proportional to 2,138,548.91, 2,950,822.35 and 1,220,358.83 is: 1,683,881.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,548.91 : 2,950,822.35 = 1,220,358.83 : x
  2. Step 2: Convert to fraction form
    2,138,548.91/2,950,822.35 = 1,220,358.83/x
  3. Step 3: Cross multiply
    2,138,548.91x = 2,950,822.35 × 1,220,358.83
  4. Step 4: Simplify right side
    2,138,548.91x = 3,601,062,095,829.74
  5. Step 5: Solve for x
    x = 3,601,062,095,829.74/2,138,548.91
  6. Step 6: Final answer
    x = 1,683,881.11

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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.