Home / 1,941.67-2,679.56-1,102.40

Finding the Fourth Proportional to 1,941.67, 2,679.56 and 1,102.40

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Solution

The fourth proportional to 1,941.67, 2,679.56 and 1,102.40 is: 1,521.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.67 : 2,679.56 = 1,102.40 : x
  2. Step 2: Convert to fraction form
    1,941.67/2,679.56 = 1,102.40/x
  3. Step 3: Cross multiply
    1,941.67x = 2,679.56 × 1,102.40
  4. Step 4: Simplify right side
    1,941.67x = 2,953,946.94
  5. Step 5: Solve for x
    x = 2,953,946.94/1,941.67
  6. Step 6: Final answer
    x = 1,521.34

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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.