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Finding the Fourth Proportional to 3,125.79, 4,661.10 and 3,097.66

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Solution

The fourth proportional to 3,125.79, 4,661.10 and 3,097.66 is: 4,619.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.79 : 4,661.10 = 3,097.66 : x
  2. Step 2: Convert to fraction form
    3,125.79/4,661.10 = 3,097.66/x
  3. Step 3: Cross multiply
    3,125.79x = 4,661.10 × 3,097.66
  4. Step 4: Simplify right side
    3,125.79x = 14,438,502.99
  5. Step 5: Solve for x
    x = 14,438,502.99/3,125.79
  6. Step 6: Final answer
    x = 4,619.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.