Home / 7,788.79-11,683.12-1,945.36

Finding the Fourth Proportional to 7,788.79, 11,683.12 and 1,945.36

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Solution

The fourth proportional to 7,788.79, 11,683.12 and 1,945.36 is: 2,918.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,788.79 : 11,683.12 = 1,945.36 : x
  2. Step 2: Convert to fraction form
    7,788.79/11,683.12 = 1,945.36/x
  3. Step 3: Cross multiply
    7,788.79x = 11,683.12 × 1,945.36
  4. Step 4: Simplify right side
    7,788.79x = 22,727,874.32
  5. Step 5: Solve for x
    x = 22,727,874.32/7,788.79
  6. Step 6: Final answer
    x = 2,918.02

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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.