Home / 3,360.79-5,041.18-1,387.53

Finding the Fourth Proportional to 3,360.79, 5,041.18 and 1,387.53

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Solution

The fourth proportional to 3,360.79, 5,041.18 and 1,387.53 is: 2,081.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,360.79 : 5,041.18 = 1,387.53 : x
  2. Step 2: Convert to fraction form
    3,360.79/5,041.18 = 1,387.53/x
  3. Step 3: Cross multiply
    3,360.79x = 5,041.18 × 1,387.53
  4. Step 4: Simplify right side
    3,360.79x = 6,994,788.49
  5. Step 5: Solve for x
    x = 6,994,788.49/3,360.79
  6. Step 6: Final answer
    x = 2,081.29

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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.