Home / 2,176.48-3,004.36-1,292.72

Finding the Fourth Proportional to 2,176.48, 3,004.36 and 1,292.72

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Solution

The fourth proportional to 2,176.48, 3,004.36 and 1,292.72 is: 1,784.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,176.48 : 3,004.36 = 1,292.72 : x
  2. Step 2: Convert to fraction form
    2,176.48/3,004.36 = 1,292.72/x
  3. Step 3: Cross multiply
    2,176.48x = 3,004.36 × 1,292.72
  4. Step 4: Simplify right side
    2,176.48x = 3,883,796.26
  5. Step 5: Solve for x
    x = 3,883,796.26/2,176.48
  6. Step 6: Final answer
    x = 1,784.44

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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.