Home / 3,619.99-5,430.11-1,248.04

Finding the Fourth Proportional to 3,619.99, 5,430.11 and 1,248.04

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Solution

The fourth proportional to 3,619.99, 5,430.11 and 1,248.04 is: 1,872.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,619.99 : 5,430.11 = 1,248.04 : x
  2. Step 2: Convert to fraction form
    3,619.99/5,430.11 = 1,248.04/x
  3. Step 3: Cross multiply
    3,619.99x = 5,430.11 × 1,248.04
  4. Step 4: Simplify right side
    3,619.99x = 6,776,994.48
  5. Step 5: Solve for x
    x = 6,776,994.48/3,619.99
  6. Step 6: Final answer
    x = 1,872.10

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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.