Home / 3,274.46-4,518.85-1,782.47

Finding the Fourth Proportional to 3,274.46, 4,518.85 and 1,782.47

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Solution

The fourth proportional to 3,274.46, 4,518.85 and 1,782.47 is: 2,459.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,274.46 : 4,518.85 = 1,782.47 : x
  2. Step 2: Convert to fraction form
    3,274.46/4,518.85 = 1,782.47/x
  3. Step 3: Cross multiply
    3,274.46x = 4,518.85 × 1,782.47
  4. Step 4: Simplify right side
    3,274.46x = 8,054,728.08
  5. Step 5: Solve for x
    x = 8,054,728.08/3,274.46
  6. Step 6: Final answer
    x = 2,459.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.