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Finding the Fourth Proportional to 3,472.63, 4,792.37 and 1,980.79

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Solution

The fourth proportional to 3,472.63, 4,792.37 and 1,980.79 is: 2,733.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,472.63 : 4,792.37 = 1,980.79 : x
  2. Step 2: Convert to fraction form
    3,472.63/4,792.37 = 1,980.79/x
  3. Step 3: Cross multiply
    3,472.63x = 4,792.37 × 1,980.79
  4. Step 4: Simplify right side
    3,472.63x = 9,492,656.69
  5. Step 5: Solve for x
    x = 9,492,656.69/3,472.63
  6. Step 6: Final answer
    x = 2,733.57

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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.