Home / 1,871.25-2,580.66-1,537.72

Finding the Fourth Proportional to 1,871.25, 2,580.66 and 1,537.72

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Solution

The fourth proportional to 1,871.25, 2,580.66 and 1,537.72 is: 2,120.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,871.25 : 2,580.66 = 1,537.72 : x
  2. Step 2: Convert to fraction form
    1,871.25/2,580.66 = 1,537.72/x
  3. Step 3: Cross multiply
    1,871.25x = 2,580.66 × 1,537.72
  4. Step 4: Simplify right side
    1,871.25x = 3,968,332.50
  5. Step 5: Solve for x
    x = 3,968,332.50/1,871.25
  6. Step 6: Final answer
    x = 2,120.69

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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.