Home / 3,731.14-5,148.79-2,159.74

Finding the Fourth Proportional to 3,731.14, 5,148.79 and 2,159.74

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Solution

The fourth proportional to 3,731.14, 5,148.79 and 2,159.74 is: 2,980.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,731.14 : 5,148.79 = 2,159.74 : x
  2. Step 2: Convert to fraction form
    3,731.14/5,148.79 = 2,159.74/x
  3. Step 3: Cross multiply
    3,731.14x = 5,148.79 × 2,159.74
  4. Step 4: Simplify right side
    3,731.14x = 11,120,047.71
  5. Step 5: Solve for x
    x = 11,120,047.71/3,731.14
  6. Step 6: Final answer
    x = 2,980.34

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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.