Home / 2,162,384.10-2,984,712.84-1,427,874.75

Finding the Fourth Proportional to 2,162,384.10, 2,984,712.84 and 1,427,874.75

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Solution

The fourth proportional to 2,162,384.10, 2,984,712.84 and 1,427,874.75 is: 1,970,878.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,162,384.10 : 2,984,712.84 = 1,427,874.75 : x
  2. Step 2: Convert to fraction form
    2,162,384.10/2,984,712.84 = 1,427,874.75/x
  3. Step 3: Cross multiply
    2,162,384.10x = 2,984,712.84 × 1,427,874.75
  4. Step 4: Simplify right side
    2,162,384.10x = 4,261,796,100,236.79
  5. Step 5: Solve for x
    x = 4,261,796,100,236.79/2,162,384.10
  6. Step 6: Final answer
    x = 1,970,878.39

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1.5x scale

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.