Home / 2,486.21-3,430.98-1,491.53

Finding the Fourth Proportional to 2,486.21, 3,430.98 and 1,491.53

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Solution

The fourth proportional to 2,486.21, 3,430.98 and 1,491.53 is: 2,058.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486.21 : 3,430.98 = 1,491.53 : x
  2. Step 2: Convert to fraction form
    2,486.21/3,430.98 = 1,491.53/x
  3. Step 3: Cross multiply
    2,486.21x = 3,430.98 × 1,491.53
  4. Step 4: Simplify right side
    2,486.21x = 5,117,392.44
  5. Step 5: Solve for x
    x = 5,117,392.44/2,486.21
  6. Step 6: Final answer
    x = 2,058.31

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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.