Home / 1,973.70-2,959.80-999.13

Finding the Fourth Proportional to 1,973.70, 2,959.80 and 999.13

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Solution

The fourth proportional to 1,973.70, 2,959.80 and 999.13 is: 1,498.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,973.70 : 2,959.80 = 999.13 : x
  2. Step 2: Convert to fraction form
    1,973.70/2,959.80 = 999.13/x
  3. Step 3: Cross multiply
    1,973.70x = 2,959.80 × 999.13
  4. Step 4: Simplify right side
    1,973.70x = 2,957,224.97
  5. Step 5: Solve for x
    x = 2,957,224.97/1,973.70
  6. Step 6: Final answer
    x = 1,498.32

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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.