Home / 3,142.58-4,714.96-1,971.19

Finding the Fourth Proportional to 3,142.58, 4,714.96 and 1,971.19

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Solution

The fourth proportional to 3,142.58, 4,714.96 and 1,971.19 is: 2,957.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,142.58 : 4,714.96 = 1,971.19 : x
  2. Step 2: Convert to fraction form
    3,142.58/4,714.96 = 1,971.19/x
  3. Step 3: Cross multiply
    3,142.58x = 4,714.96 × 1,971.19
  4. Step 4: Simplify right side
    3,142.58x = 9,294,065.29
  5. Step 5: Solve for x
    x = 9,294,065.29/3,142.58
  6. Step 6: Final answer
    x = 2,957.47

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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.