Home / 2,332.76-3,219.20-1,284.80

Finding the Fourth Proportional to 2,332.76, 3,219.20 and 1,284.80

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Solution

The fourth proportional to 2,332.76, 3,219.20 and 1,284.80 is: 1,773.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,332.76 : 3,219.20 = 1,284.80 : x
  2. Step 2: Convert to fraction form
    2,332.76/3,219.20 = 1,284.80/x
  3. Step 3: Cross multiply
    2,332.76x = 3,219.20 × 1,284.80
  4. Step 4: Simplify right side
    2,332.76x = 4,136,028.16
  5. Step 5: Solve for x
    x = 4,136,028.16/2,332.76
  6. Step 6: Final answer
    x = 1,773.02

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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.