Home / 1,941.74-2,912.70-1,284.92

Finding the Fourth Proportional to 1,941.74, 2,912.70 and 1,284.92

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Solution

The fourth proportional to 1,941.74, 2,912.70 and 1,284.92 is: 1,927.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.74 : 2,912.70 = 1,284.92 : x
  2. Step 2: Convert to fraction form
    1,941.74/2,912.70 = 1,284.92/x
  3. Step 3: Cross multiply
    1,941.74x = 2,912.70 × 1,284.92
  4. Step 4: Simplify right side
    1,941.74x = 3,742,586.48
  5. Step 5: Solve for x
    x = 3,742,586.48/1,941.74
  6. Step 6: Final answer
    x = 1,927.44

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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.