Home / 5,019.08-7,528.59-1,321.28

Finding the Fourth Proportional to 5,019.08, 7,528.59 and 1,321.28

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Solution

The fourth proportional to 5,019.08, 7,528.59 and 1,321.28 is: 1,981.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,019.08 : 7,528.59 = 1,321.28 : x
  2. Step 2: Convert to fraction form
    5,019.08/7,528.59 = 1,321.28/x
  3. Step 3: Cross multiply
    5,019.08x = 7,528.59 × 1,321.28
  4. Step 4: Simplify right side
    5,019.08x = 9,947,375.40
  5. Step 5: Solve for x
    x = 9,947,375.40/5,019.08
  6. Step 6: Final answer
    x = 1,981.91

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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.