Home / 3,128.86-4,312.87-2,464.84

Finding the Fourth Proportional to 3,128.86, 4,312.87 and 2,464.84

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Solution

The fourth proportional to 3,128.86, 4,312.87 and 2,464.84 is: 3,397.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.86 : 4,312.87 = 2,464.84 : x
  2. Step 2: Convert to fraction form
    3,128.86/4,312.87 = 2,464.84/x
  3. Step 3: Cross multiply
    3,128.86x = 4,312.87 × 2,464.84
  4. Step 4: Simplify right side
    3,128.86x = 10,630,534.49
  5. Step 5: Solve for x
    x = 10,630,534.49/3,128.86
  6. Step 6: Final answer
    x = 3,397.57

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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.