Home / 1,459.90-2,013.26-1,127.80

Finding the Fourth Proportional to 1,459.90, 2,013.26 and 1,127.80

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Solution

The fourth proportional to 1,459.90, 2,013.26 and 1,127.80 is: 1,555.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,459.90 : 2,013.26 = 1,127.80 : x
  2. Step 2: Convert to fraction form
    1,459.90/2,013.26 = 1,127.80/x
  3. Step 3: Cross multiply
    1,459.90x = 2,013.26 × 1,127.80
  4. Step 4: Simplify right side
    1,459.90x = 2,270,554.63
  5. Step 5: Solve for x
    x = 2,270,554.63/1,459.90
  6. Step 6: Final answer
    x = 1,555.28

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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.