Home / 2,009.90-2,771.66-1,537.71

Finding the Fourth Proportional to 2,009.90, 2,771.66 and 1,537.71

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Solution

The fourth proportional to 2,009.90, 2,771.66 and 1,537.71 is: 2,120.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,009.90 : 2,771.66 = 1,537.71 : x
  2. Step 2: Convert to fraction form
    2,009.90/2,771.66 = 1,537.71/x
  3. Step 3: Cross multiply
    2,009.90x = 2,771.66 × 1,537.71
  4. Step 4: Simplify right side
    2,009.90x = 4,262,001.61
  5. Step 5: Solve for x
    x = 4,262,001.61/2,009.90
  6. Step 6: Final answer
    x = 2,120.51

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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.