Home / 2,142,836.21-2,956,918.55-1,271,520.74

Finding the Fourth Proportional to 2,142,836.21, 2,956,918.55 and 1,271,520.74

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Solution

The fourth proportional to 2,142,836.21, 2,956,918.55 and 1,271,520.74 is: 1,754,582.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,142,836.21 : 2,956,918.55 = 1,271,520.74 : x
  2. Step 2: Convert to fraction form
    2,142,836.21/2,956,918.55 = 1,271,520.74/x
  3. Step 3: Cross multiply
    2,142,836.21x = 2,956,918.55 × 1,271,520.74
  4. Step 4: Simplify right side
    2,142,836.21x = 3,759,783,241,673.53
  5. Step 5: Solve for x
    x = 3,759,783,241,673.53/2,142,836.21
  6. Step 6: Final answer
    x = 1,754,582.66

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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.