Home / 2,485.65-3,429.75-1,541.67

Finding the Fourth Proportional to 2,485.65, 3,429.75 and 1,541.67

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Solution

The fourth proportional to 2,485.65, 3,429.75 and 1,541.67 is: 2,127.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485.65 : 3,429.75 = 1,541.67 : x
  2. Step 2: Convert to fraction form
    2,485.65/3,429.75 = 1,541.67/x
  3. Step 3: Cross multiply
    2,485.65x = 3,429.75 × 1,541.67
  4. Step 4: Simplify right side
    2,485.65x = 5,287,542.68
  5. Step 5: Solve for x
    x = 5,287,542.68/2,485.65
  6. Step 6: Final answer
    x = 2,127.23

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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.