Home / 2,505.67-3,457.74-1,386.65

Finding the Fourth Proportional to 2,505.67, 3,457.74 and 1,386.65

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Solution

The fourth proportional to 2,505.67, 3,457.74 and 1,386.65 is: 1,913.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,505.67 : 3,457.74 = 1,386.65 : x
  2. Step 2: Convert to fraction form
    2,505.67/3,457.74 = 1,386.65/x
  3. Step 3: Cross multiply
    2,505.67x = 3,457.74 × 1,386.65
  4. Step 4: Simplify right side
    2,505.67x = 4,794,676.67
  5. Step 5: Solve for x
    x = 4,794,676.67/2,505.67
  6. Step 6: Final answer
    x = 1,913.53

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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.