Home / 1,502.24-2,075.09-1,208.61

Finding the Fourth Proportional to 1,502.24, 2,075.09 and 1,208.61

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Solution

The fourth proportional to 1,502.24, 2,075.09 and 1,208.61 is: 1,669.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,502.24 : 2,075.09 = 1,208.61 : x
  2. Step 2: Convert to fraction form
    1,502.24/2,075.09 = 1,208.61/x
  3. Step 3: Cross multiply
    1,502.24x = 2,075.09 × 1,208.61
  4. Step 4: Simplify right side
    1,502.24x = 2,507,968.48
  5. Step 5: Solve for x
    x = 2,507,968.48/1,502.24
  6. Step 6: Final answer
    x = 1,669.49

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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.