Home / 2,190.92-3,023.88-1,307.48

Finding the Fourth Proportional to 2,190.92, 3,023.88 and 1,307.48

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Solution

The fourth proportional to 2,190.92, 3,023.88 and 1,307.48 is: 1,804.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.92 : 3,023.88 = 1,307.48 : x
  2. Step 2: Convert to fraction form
    2,190.92/3,023.88 = 1,307.48/x
  3. Step 3: Cross multiply
    2,190.92x = 3,023.88 × 1,307.48
  4. Step 4: Simplify right side
    2,190.92x = 3,953,662.62
  5. Step 5: Solve for x
    x = 3,953,662.62/2,190.92
  6. Step 6: Final answer
    x = 1,804.57

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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.