Home / 3,393.57-5,090.37-928.77

Finding the Fourth Proportional to 3,393.57, 5,090.37 and 928.77

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Solution

The fourth proportional to 3,393.57, 5,090.37 and 928.77 is: 1,393.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,393.57 : 5,090.37 = 928.77 : x
  2. Step 2: Convert to fraction form
    3,393.57/5,090.37 = 928.77/x
  3. Step 3: Cross multiply
    3,393.57x = 5,090.37 × 928.77
  4. Step 4: Simplify right side
    3,393.57x = 4,727,762.99
  5. Step 5: Solve for x
    x = 4,727,762.99/3,393.57
  6. Step 6: Final answer
    x = 1,393.15

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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.