Home / 4,258.69-6,390.47-1,661.02

Finding the Fourth Proportional to 4,258.69, 6,390.47 and 1,661.02

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Solution

The fourth proportional to 4,258.69, 6,390.47 and 1,661.02 is: 2,492.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,258.69 : 6,390.47 = 1,661.02 : x
  2. Step 2: Convert to fraction form
    4,258.69/6,390.47 = 1,661.02/x
  3. Step 3: Cross multiply
    4,258.69x = 6,390.47 × 1,661.02
  4. Step 4: Simplify right side
    4,258.69x = 10,614,698.48
  5. Step 5: Solve for x
    x = 10,614,698.48/4,258.69
  6. Step 6: Final answer
    x = 2,492.48

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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.