Home / 1,504.12-2,075.79-874.66

Finding the Fourth Proportional to 1,504.12, 2,075.79 and 874.66

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Solution

The fourth proportional to 1,504.12, 2,075.79 and 874.66 is: 1,207.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,504.12 : 2,075.79 = 874.66 : x
  2. Step 2: Convert to fraction form
    1,504.12/2,075.79 = 874.66/x
  3. Step 3: Cross multiply
    1,504.12x = 2,075.79 × 874.66
  4. Step 4: Simplify right side
    1,504.12x = 1,815,610.48
  5. Step 5: Solve for x
    x = 1,815,610.48/1,504.12
  6. Step 6: Final answer
    x = 1,207.09

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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.