Home / 1,977.94-2,966.91-1,326.70

Finding the Fourth Proportional to 1,977.94, 2,966.91 and 1,326.70

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Solution

The fourth proportional to 1,977.94, 2,966.91 and 1,326.70 is: 1,990.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,977.94 : 2,966.91 = 1,326.70 : x
  2. Step 2: Convert to fraction form
    1,977.94/2,966.91 = 1,326.70/x
  3. Step 3: Cross multiply
    1,977.94x = 2,966.91 × 1,326.70
  4. Step 4: Simplify right side
    1,977.94x = 3,936,199.50
  5. Step 5: Solve for x
    x = 3,936,199.50/1,977.94
  6. Step 6: Final answer
    x = 1,990.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.