Home / 3,220.53-4,829.55-1,140.15

Finding the Fourth Proportional to 3,220.53, 4,829.55 and 1,140.15

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Solution

The fourth proportional to 3,220.53, 4,829.55 and 1,140.15 is: 1,709.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.53 : 4,829.55 = 1,140.15 : x
  2. Step 2: Convert to fraction form
    3,220.53/4,829.55 = 1,140.15/x
  3. Step 3: Cross multiply
    3,220.53x = 4,829.55 × 1,140.15
  4. Step 4: Simplify right side
    3,220.53x = 5,506,411.43
  5. Step 5: Solve for x
    x = 5,506,411.43/3,220.53
  6. Step 6: Final answer
    x = 1,709.78

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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.