Home / 2,486.66-3,430.34-1,491.72

Finding the Fourth Proportional to 2,486.66, 3,430.34 and 1,491.72

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Solution

The fourth proportional to 2,486.66, 3,430.34 and 1,491.72 is: 2,057.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486.66 : 3,430.34 = 1,491.72 : x
  2. Step 2: Convert to fraction form
    2,486.66/3,430.34 = 1,491.72/x
  3. Step 3: Cross multiply
    2,486.66x = 3,430.34 × 1,491.72
  4. Step 4: Simplify right side
    2,486.66x = 5,117,106.78
  5. Step 5: Solve for x
    x = 5,117,106.78/2,486.66
  6. Step 6: Final answer
    x = 2,057.82

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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.