Home / 3,320.68-4,980.44-1,011.64

Finding the Fourth Proportional to 3,320.68, 4,980.44 and 1,011.64

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Solution

The fourth proportional to 3,320.68, 4,980.44 and 1,011.64 is: 1,517.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,320.68 : 4,980.44 = 1,011.64 : x
  2. Step 2: Convert to fraction form
    3,320.68/4,980.44 = 1,011.64/x
  3. Step 3: Cross multiply
    3,320.68x = 4,980.44 × 1,011.64
  4. Step 4: Simplify right side
    3,320.68x = 5,038,412.32
  5. Step 5: Solve for x
    x = 5,038,412.32/3,320.68
  6. Step 6: Final answer
    x = 1,517.28

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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.