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Finding the Fourth Proportional to 3,128.69, 4,699.11 and 2,303.71

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Solution

The fourth proportional to 3,128.69, 4,699.11 and 2,303.71 is: 3,460.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128.69 : 4,699.11 = 2,303.71 : x
  2. Step 2: Convert to fraction form
    3,128.69/4,699.11 = 2,303.71/x
  3. Step 3: Cross multiply
    3,128.69x = 4,699.11 × 2,303.71
  4. Step 4: Simplify right side
    3,128.69x = 10,825,363.20
  5. Step 5: Solve for x
    x = 10,825,363.20/3,128.69
  6. Step 6: Final answer
    x = 3,460.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.