Home / 1,265.68-1,735.49-1,140.84

Finding the Fourth Proportional to 1,265.68, 1,735.49 and 1,140.84

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Solution

The fourth proportional to 1,265.68, 1,735.49 and 1,140.84 is: 1,564.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265.68 : 1,735.49 = 1,140.84 : x
  2. Step 2: Convert to fraction form
    1,265.68/1,735.49 = 1,140.84/x
  3. Step 3: Cross multiply
    1,265.68x = 1,735.49 × 1,140.84
  4. Step 4: Simplify right side
    1,265.68x = 1,979,916.41
  5. Step 5: Solve for x
    x = 1,979,916.41/1,265.68
  6. Step 6: Final answer
    x = 1,564.31

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.