Home / 2,073.18-3,109.70-612.36

Finding the Fourth Proportional to 2,073.18, 3,109.70 and 612.36

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Solution

The fourth proportional to 2,073.18, 3,109.70 and 612.36 is: 918.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,073.18 : 3,109.70 = 612.36 : x
  2. Step 2: Convert to fraction form
    2,073.18/3,109.70 = 612.36/x
  3. Step 3: Cross multiply
    2,073.18x = 3,109.70 × 612.36
  4. Step 4: Simplify right side
    2,073.18x = 1,904,255.89
  5. Step 5: Solve for x
    x = 1,904,255.89/2,073.18
  6. Step 6: Final answer
    x = 918.52

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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.