Home / 1,669.51-2,302.78-1,079.93

Finding the Fourth Proportional to 1,669.51, 2,302.78 and 1,079.93

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Solution

The fourth proportional to 1,669.51, 2,302.78 and 1,079.93 is: 1,489.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,669.51 : 2,302.78 = 1,079.93 : x
  2. Step 2: Convert to fraction form
    1,669.51/2,302.78 = 1,079.93/x
  3. Step 3: Cross multiply
    1,669.51x = 2,302.78 × 1,079.93
  4. Step 4: Simplify right side
    1,669.51x = 2,486,846.29
  5. Step 5: Solve for x
    x = 2,486,846.29/1,669.51
  6. Step 6: Final answer
    x = 1,489.57

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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.