Home / 2,177.21-3,004.47-1,292.51

Finding the Fourth Proportional to 2,177.21, 3,004.47 and 1,292.51

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Solution

The fourth proportional to 2,177.21, 3,004.47 and 1,292.51 is: 1,783.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177.21 : 3,004.47 = 1,292.51 : x
  2. Step 2: Convert to fraction form
    2,177.21/3,004.47 = 1,292.51/x
  3. Step 3: Cross multiply
    2,177.21x = 3,004.47 × 1,292.51
  4. Step 4: Simplify right side
    2,177.21x = 3,883,292.50
  5. Step 5: Solve for x
    x = 3,883,292.50/2,177.21
  6. Step 6: Final answer
    x = 1,783.61

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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.