Home / 2,931.03-4,040.61-2,090.28

Finding the Fourth Proportional to 2,931.03, 4,040.61 and 2,090.28

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Solution

The fourth proportional to 2,931.03, 4,040.61 and 2,090.28 is: 2,881.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931.03 : 4,040.61 = 2,090.28 : x
  2. Step 2: Convert to fraction form
    2,931.03/4,040.61 = 2,090.28/x
  3. Step 3: Cross multiply
    2,931.03x = 4,040.61 × 2,090.28
  4. Step 4: Simplify right side
    2,931.03x = 8,446,006.27
  5. Step 5: Solve for x
    x = 8,446,006.27/2,931.03
  6. Step 6: Final answer
    x = 2,881.58

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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.