Home / 3,148.01-4,740.75-2,742.05

Finding the Fourth Proportional to 3,148.01, 4,740.75 and 2,742.05

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Solution

The fourth proportional to 3,148.01, 4,740.75 and 2,742.05 is: 4,129.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.01 : 4,740.75 = 2,742.05 : x
  2. Step 2: Convert to fraction form
    3,148.01/4,740.75 = 2,742.05/x
  3. Step 3: Cross multiply
    3,148.01x = 4,740.75 × 2,742.05
  4. Step 4: Simplify right side
    3,148.01x = 12,999,349.83
  5. Step 5: Solve for x
    x = 12,999,349.83/3,148.01
  6. Step 6: Final answer
    x = 4,129.39

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.