Home / 2,120,135.10-2,925,862.47-1,214,892.06

Finding the Fourth Proportional to 2,120,135.10, 2,925,862.47 and 1,214,892.06

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Solution

The fourth proportional to 2,120,135.10, 2,925,862.47 and 1,214,892.06 is: 1,676,594.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120,135.10 : 2,925,862.47 = 1,214,892.06 : x
  2. Step 2: Convert to fraction form
    2,120,135.10/2,925,862.47 = 1,214,892.06/x
  3. Step 3: Cross multiply
    2,120,135.10x = 2,925,862.47 × 1,214,892.06
  4. Step 4: Simplify right side
    2,120,135.10x = 3,554,607,083,454.99
  5. Step 5: Solve for x
    x = 3,554,607,083,454.99/2,120,135.10
  6. Step 6: Final answer
    x = 1,676,594.61

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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.