Home / 2,146.07-3,219.33-913.60

Finding the Fourth Proportional to 2,146.07, 3,219.33 and 913.60

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Solution

The fourth proportional to 2,146.07, 3,219.33 and 913.60 is: 1,370.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,146.07 : 3,219.33 = 913.60 : x
  2. Step 2: Convert to fraction form
    2,146.07/3,219.33 = 913.60/x
  3. Step 3: Cross multiply
    2,146.07x = 3,219.33 × 913.60
  4. Step 4: Simplify right side
    2,146.07x = 2,941,195.11
  5. Step 5: Solve for x
    x = 2,941,195.11/2,146.07
  6. Step 6: Final answer
    x = 1,370.50

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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.