Home / 1,973.36-2,959.78-512.60

Finding the Fourth Proportional to 1,973.36, 2,959.78 and 512.60

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Solution

The fourth proportional to 1,973.36, 2,959.78 and 512.60 is: 768.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,973.36 : 2,959.78 = 512.60 : x
  2. Step 2: Convert to fraction form
    1,973.36/2,959.78 = 512.60/x
  3. Step 3: Cross multiply
    1,973.36x = 2,959.78 × 512.60
  4. Step 4: Simplify right side
    1,973.36x = 1,517,183.23
  5. Step 5: Solve for x
    x = 1,517,183.23/1,973.36
  6. Step 6: Final answer
    x = 768.83

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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.