Home / 3,337.84-5,005.20-1,389.52

Finding the Fourth Proportional to 3,337.84, 5,005.20 and 1,389.52

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Solution

The fourth proportional to 3,337.84, 5,005.20 and 1,389.52 is: 2,083.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,337.84 : 5,005.20 = 1,389.52 : x
  2. Step 2: Convert to fraction form
    3,337.84/5,005.20 = 1,389.52/x
  3. Step 3: Cross multiply
    3,337.84x = 5,005.20 × 1,389.52
  4. Step 4: Simplify right side
    3,337.84x = 6,954,825.50
  5. Step 5: Solve for x
    x = 6,954,825.50/3,337.84
  6. Step 6: Final answer
    x = 2,083.63

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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.