Home / 2,783.07-4,174.65-934.20

Finding the Fourth Proportional to 2,783.07, 4,174.65 and 934.20

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Solution

The fourth proportional to 2,783.07, 4,174.65 and 934.20 is: 1,401.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,783.07 : 4,174.65 = 934.20 : x
  2. Step 2: Convert to fraction form
    2,783.07/4,174.65 = 934.20/x
  3. Step 3: Cross multiply
    2,783.07x = 4,174.65 × 934.20
  4. Step 4: Simplify right side
    2,783.07x = 3,899,958.03
  5. Step 5: Solve for x
    x = 3,899,958.03/2,783.07
  6. Step 6: Final answer
    x = 1,401.32

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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.