Home / 2,506.74-3,459-1,387.53

Finding the Fourth Proportional to 2,506.74, 3,459 and 1,387.53

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Solution

The fourth proportional to 2,506.74, 3,459 and 1,387.53 is: 1,914.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,506.74 : 3,459 = 1,387.53 : x
  2. Step 2: Convert to fraction form
    2,506.74/3,459 = 1,387.53/x
  3. Step 3: Cross multiply
    2,506.74x = 3,459 × 1,387.53
  4. Step 4: Simplify right side
    2,506.74x = 4,799,466.27
  5. Step 5: Solve for x
    x = 4,799,466.27/2,506.74
  6. Step 6: Final answer
    x = 1,914.62

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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.