Home / 1,979.53-2,966.55-1,685.50

Finding the Fourth Proportional to 1,979.53, 2,966.55 and 1,685.50

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Solution

The fourth proportional to 1,979.53, 2,966.55 and 1,685.50 is: 2,525.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979.53 : 2,966.55 = 1,685.50 : x
  2. Step 2: Convert to fraction form
    1,979.53/2,966.55 = 1,685.50/x
  3. Step 3: Cross multiply
    1,979.53x = 2,966.55 × 1,685.50
  4. Step 4: Simplify right side
    1,979.53x = 5,000,120.03
  5. Step 5: Solve for x
    x = 5,000,120.03/1,979.53
  6. Step 6: Final answer
    x = 2,525.91

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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.