Home / 3,320.18-4,980.09-1,011.50

Finding the Fourth Proportional to 3,320.18, 4,980.09 and 1,011.50

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Solution

The fourth proportional to 3,320.18, 4,980.09 and 1,011.50 is: 1,517.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.18 : 4,980.09 = 1,011.50 : x
  2. Step 2: Convert to fraction form
    3,320.18/4,980.09 = 1,011.50/x
  3. Step 3: Cross multiply
    3,320.18x = 4,980.09 × 1,011.50
  4. Step 4: Simplify right side
    3,320.18x = 5,037,361.04
  5. Step 5: Solve for x
    x = 5,037,361.04/3,320.18
  6. Step 6: Final answer
    x = 1,517.20

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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.