Home / 2,061.40-3,089.40-1,829.20

Finding the Fourth Proportional to 2,061.40, 3,089.40 and 1,829.20

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Solution

The fourth proportional to 2,061.40, 3,089.40 and 1,829.20 is: 2,741.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,061.40 : 3,089.40 = 1,829.20 : x
  2. Step 2: Convert to fraction form
    2,061.40/3,089.40 = 1,829.20/x
  3. Step 3: Cross multiply
    2,061.40x = 3,089.40 × 1,829.20
  4. Step 4: Simplify right side
    2,061.40x = 5,651,130.48
  5. Step 5: Solve for x
    x = 5,651,130.48/2,061.40
  6. Step 6: Final answer
    x = 2,741.40

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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.