Home / 5,268.24-7,903.28-1,981.80

Finding the Fourth Proportional to 5,268.24, 7,903.28 and 1,981.80

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Solution

The fourth proportional to 5,268.24, 7,903.28 and 1,981.80 is: 2,973.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,268.24 : 7,903.28 = 1,981.80 : x
  2. Step 2: Convert to fraction form
    5,268.24/7,903.28 = 1,981.80/x
  3. Step 3: Cross multiply
    5,268.24x = 7,903.28 × 1,981.80
  4. Step 4: Simplify right side
    5,268.24x = 15,662,720.30
  5. Step 5: Solve for x
    x = 15,662,720.30/5,268.24
  6. Step 6: Final answer
    x = 2,973.05

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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.