Home / 3,129.29-4,316.42-2,184.74

Finding the Fourth Proportional to 3,129.29, 4,316.42 and 2,184.74

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Solution

The fourth proportional to 3,129.29, 4,316.42 and 2,184.74 is: 3,013.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.29 : 4,316.42 = 2,184.74 : x
  2. Step 2: Convert to fraction form
    3,129.29/4,316.42 = 2,184.74/x
  3. Step 3: Cross multiply
    3,129.29x = 4,316.42 × 2,184.74
  4. Step 4: Simplify right side
    3,129.29x = 9,430,222.93
  5. Step 5: Solve for x
    x = 9,430,222.93/3,129.29
  6. Step 6: Final answer
    x = 3,013.54

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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.