Home / 4,630.78-6,390.43-2,506.31

Finding the Fourth Proportional to 4,630.78, 6,390.43 and 2,506.31

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Solution

The fourth proportional to 4,630.78, 6,390.43 and 2,506.31 is: 3,458.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,630.78 : 6,390.43 = 2,506.31 : x
  2. Step 2: Convert to fraction form
    4,630.78/6,390.43 = 2,506.31/x
  3. Step 3: Cross multiply
    4,630.78x = 6,390.43 × 2,506.31
  4. Step 4: Simplify right side
    4,630.78x = 16,016,360.40
  5. Step 5: Solve for x
    x = 16,016,360.40/4,630.78
  6. Step 6: Final answer
    x = 3,458.68

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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.