Home / 2,486.35-3,429.10-1,491.40

Finding the Fourth Proportional to 2,486.35, 3,429.10 and 1,491.40

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Solution

The fourth proportional to 2,486.35, 3,429.10 and 1,491.40 is: 2,056.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486.35 : 3,429.10 = 1,491.40 : x
  2. Step 2: Convert to fraction form
    2,486.35/3,429.10 = 1,491.40/x
  3. Step 3: Cross multiply
    2,486.35x = 3,429.10 × 1,491.40
  4. Step 4: Simplify right side
    2,486.35x = 5,114,159.74
  5. Step 5: Solve for x
    x = 5,114,159.74/2,486.35
  6. Step 6: Final answer
    x = 2,056.89

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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.