Home / 4,120.54-6,180.81-2,390.38

Finding the Fourth Proportional to 4,120.54, 6,180.81 and 2,390.38

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Solution

The fourth proportional to 4,120.54, 6,180.81 and 2,390.38 is: 3,585.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.54 : 6,180.81 = 2,390.38 : x
  2. Step 2: Convert to fraction form
    4,120.54/6,180.81 = 2,390.38/x
  3. Step 3: Cross multiply
    4,120.54x = 6,180.81 × 2,390.38
  4. Step 4: Simplify right side
    4,120.54x = 14,774,484.61
  5. Step 5: Solve for x
    x = 14,774,484.61/4,120.54
  6. Step 6: Final answer
    x = 3,585.57

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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.