Home / 5,383.87-7,430.02-3,145.61

Finding the Fourth Proportional to 5,383.87, 7,430.02 and 3,145.61

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Solution

The fourth proportional to 5,383.87, 7,430.02 and 3,145.61 is: 4,341.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,383.87 : 7,430.02 = 3,145.61 : x
  2. Step 2: Convert to fraction form
    5,383.87/7,430.02 = 3,145.61/x
  3. Step 3: Cross multiply
    5,383.87x = 7,430.02 × 3,145.61
  4. Step 4: Simplify right side
    5,383.87x = 23,371,955.92
  5. Step 5: Solve for x
    x = 23,371,955.92/5,383.87
  6. Step 6: Final answer
    x = 4,341.11

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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.