Home / 5,210.82-7,811.91-1,923.30

Finding the Fourth Proportional to 5,210.82, 7,811.91 and 1,923.30

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Solution

The fourth proportional to 5,210.82, 7,811.91 and 1,923.30 is: 2,883.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,210.82 : 7,811.91 = 1,923.30 : x
  2. Step 2: Convert to fraction form
    5,210.82/7,811.91 = 1,923.30/x
  3. Step 3: Cross multiply
    5,210.82x = 7,811.91 × 1,923.30
  4. Step 4: Simplify right side
    5,210.82x = 15,024,646.50
  5. Step 5: Solve for x
    x = 15,024,646.50/5,210.82
  6. Step 6: Final answer
    x = 2,883.36

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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.