Home / 2,139,239.16-2,952,182.70-1,172,361.60

Finding the Fourth Proportional to 2,139,239.16, 2,952,182.70 and 1,172,361.60

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Solution

The fourth proportional to 2,139,239.16, 2,952,182.70 and 1,172,361.60 is: 1,617,876.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,139,239.16 : 2,952,182.70 = 1,172,361.60 : x
  2. Step 2: Convert to fraction form
    2,139,239.16/2,952,182.70 = 1,172,361.60/x
  3. Step 3: Cross multiply
    2,139,239.16x = 2,952,182.70 × 1,172,361.60
  4. Step 4: Simplify right side
    2,139,239.16x = 3,461,025,633,664.32
  5. Step 5: Solve for x
    x = 3,461,025,633,664.32/2,139,239.16
  6. Step 6: Final answer
    x = 1,617,876.91

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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.