Home / 2,731.71-4,090.28-1,430.45

Finding the Fourth Proportional to 2,731.71, 4,090.28 and 1,430.45

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Solution

The fourth proportional to 2,731.71, 4,090.28 and 1,430.45 is: 2,141.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,731.71 : 4,090.28 = 1,430.45 : x
  2. Step 2: Convert to fraction form
    2,731.71/4,090.28 = 1,430.45/x
  3. Step 3: Cross multiply
    2,731.71x = 4,090.28 × 1,430.45
  4. Step 4: Simplify right side
    2,731.71x = 5,850,941.03
  5. Step 5: Solve for x
    x = 5,850,941.03/2,731.71
  6. Step 6: Final answer
    x = 2,141.86

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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.