Home / 1,971.90-2,957.82-585.23

Finding the Fourth Proportional to 1,971.90, 2,957.82 and 585.23

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Solution

The fourth proportional to 1,971.90, 2,957.82 and 585.23 is: 877.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971.90 : 2,957.82 = 585.23 : x
  2. Step 2: Convert to fraction form
    1,971.90/2,957.82 = 585.23/x
  3. Step 3: Cross multiply
    1,971.90x = 2,957.82 × 585.23
  4. Step 4: Simplify right side
    1,971.90x = 1,730,990.21
  5. Step 5: Solve for x
    x = 1,730,990.21/1,971.90
  6. Step 6: Final answer
    x = 877.83

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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.