Home / 5,287.43-7,930.85-1,777.07

Finding the Fourth Proportional to 5,287.43, 7,930.85 and 1,777.07

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Solution

The fourth proportional to 5,287.43, 7,930.85 and 1,777.07 is: 2,665.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,287.43 : 7,930.85 = 1,777.07 : x
  2. Step 2: Convert to fraction form
    5,287.43/7,930.85 = 1,777.07/x
  3. Step 3: Cross multiply
    5,287.43x = 7,930.85 × 1,777.07
  4. Step 4: Simplify right side
    5,287.43x = 14,093,683.50
  5. Step 5: Solve for x
    x = 14,093,683.50/5,287.43
  6. Step 6: Final answer
    x = 2,665.51

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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.