Home / 2,187,002.77-3,018,065.71-1,220,133.26

Finding the Fourth Proportional to 2,187,002.77, 3,018,065.71 and 1,220,133.26

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Solution

The fourth proportional to 2,187,002.77, 3,018,065.71 and 1,220,133.26 is: 1,683,784.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187,002.77 : 3,018,065.71 = 1,220,133.26 : x
  2. Step 2: Convert to fraction form
    2,187,002.77/3,018,065.71 = 1,220,133.26/x
  3. Step 3: Cross multiply
    2,187,002.77x = 3,018,065.71 × 1,220,133.26
  4. Step 4: Simplify right side
    2,187,002.77x = 3,682,442,353,636.51
  5. Step 5: Solve for x
    x = 3,682,442,353,636.51/2,187,002.77
  6. Step 6: Final answer
    x = 1,683,784.95

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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.