Home / 5,268.41-7,899.54-1,981.76

Finding the Fourth Proportional to 5,268.41, 7,899.54 and 1,981.76

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Solution

The fourth proportional to 5,268.41, 7,899.54 and 1,981.76 is: 2,971.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,268.41 : 7,899.54 = 1,981.76 : x
  2. Step 2: Convert to fraction form
    5,268.41/7,899.54 = 1,981.76/x
  3. Step 3: Cross multiply
    5,268.41x = 7,899.54 × 1,981.76
  4. Step 4: Simplify right side
    5,268.41x = 15,655,012.14
  5. Step 5: Solve for x
    x = 15,655,012.14/5,268.41
  6. Step 6: Final answer
    x = 2,971.49

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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.