Home / 1,973.03-2,959.50-512.20

Finding the Fourth Proportional to 1,973.03, 2,959.50 and 512.20

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Solution

The fourth proportional to 1,973.03, 2,959.50 and 512.20 is: 768.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,973.03 : 2,959.50 = 512.20 : x
  2. Step 2: Convert to fraction form
    1,973.03/2,959.50 = 512.20/x
  3. Step 3: Cross multiply
    1,973.03x = 2,959.50 × 512.20
  4. Step 4: Simplify right side
    1,973.03x = 1,515,841.10
  5. Step 5: Solve for x
    x = 1,515,841.10/1,973.03
  6. Step 6: Final answer
    x = 768.28

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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.