Home / 1,283.48-1,779.99-1,203.29

Finding the Fourth Proportional to 1,283.48, 1,779.99 and 1,203.29

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Solution

The fourth proportional to 1,283.48, 1,779.99 and 1,203.29 is: 1,668.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,283.48 : 1,779.99 = 1,203.29 : x
  2. Step 2: Convert to fraction form
    1,283.48/1,779.99 = 1,203.29/x
  3. Step 3: Cross multiply
    1,283.48x = 1,779.99 × 1,203.29
  4. Step 4: Simplify right side
    1,283.48x = 2,141,838.15
  5. Step 5: Solve for x
    x = 2,141,838.15/1,283.48
  6. Step 6: Final answer
    x = 1,668.77

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.