Home / 3,320.13-4,980.19-1,011.63

Finding the Fourth Proportional to 3,320.13, 4,980.19 and 1,011.63

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Solution

The fourth proportional to 3,320.13, 4,980.19 and 1,011.63 is: 1,517.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.13 : 4,980.19 = 1,011.63 : x
  2. Step 2: Convert to fraction form
    3,320.13/4,980.19 = 1,011.63/x
  3. Step 3: Cross multiply
    3,320.13x = 4,980.19 × 1,011.63
  4. Step 4: Simplify right side
    3,320.13x = 5,038,109.61
  5. Step 5: Solve for x
    x = 5,038,109.61/3,320.13
  6. Step 6: Final answer
    x = 1,517.44

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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.