Home / 5,119.36-7,678.98-1,832.68

Finding the Fourth Proportional to 5,119.36, 7,678.98 and 1,832.68

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Solution

The fourth proportional to 5,119.36, 7,678.98 and 1,832.68 is: 2,749.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,119.36 : 7,678.98 = 1,832.68 : x
  2. Step 2: Convert to fraction form
    5,119.36/7,678.98 = 1,832.68/x
  3. Step 3: Cross multiply
    5,119.36x = 7,678.98 × 1,832.68
  4. Step 4: Simplify right side
    5,119.36x = 14,073,113.07
  5. Step 5: Solve for x
    x = 14,073,113.07/5,119.36
  6. Step 6: Final answer
    x = 2,749.00

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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.