Home / 2,018.80-3,024.15-1,403.20

Finding the Fourth Proportional to 2,018.80, 3,024.15 and 1,403.20

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Solution

The fourth proportional to 2,018.80, 3,024.15 and 1,403.20 is: 2,101.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,018.80 : 3,024.15 = 1,403.20 : x
  2. Step 2: Convert to fraction form
    2,018.80/3,024.15 = 1,403.20/x
  3. Step 3: Cross multiply
    2,018.80x = 3,024.15 × 1,403.20
  4. Step 4: Simplify right side
    2,018.80x = 4,243,487.28
  5. Step 5: Solve for x
    x = 4,243,487.28/2,018.80
  6. Step 6: Final answer
    x = 2,101.98

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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.