Home / 2,124.48-3,186.72-2,003.52

Finding the Fourth Proportional to 2,124.48, 3,186.72 and 2,003.52

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Solution

The fourth proportional to 2,124.48, 3,186.72 and 2,003.52 is: 3,005.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124.48 : 3,186.72 = 2,003.52 : x
  2. Step 2: Convert to fraction form
    2,124.48/3,186.72 = 2,003.52/x
  3. Step 3: Cross multiply
    2,124.48x = 3,186.72 × 2,003.52
  4. Step 4: Simplify right side
    2,124.48x = 6,384,657.25
  5. Step 5: Solve for x
    x = 6,384,657.25/2,124.48
  6. Step 6: Final answer
    x = 3,005.28

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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.