Home / 1,669.12-2,516.35-1,579.84

Finding the Fourth Proportional to 1,669.12, 2,516.35 and 1,579.84

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Solution

The fourth proportional to 1,669.12, 2,516.35 and 1,579.84 is: 2,381.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,669.12 : 2,516.35 = 1,579.84 : x
  2. Step 2: Convert to fraction form
    1,669.12/2,516.35 = 1,579.84/x
  3. Step 3: Cross multiply
    1,669.12x = 2,516.35 × 1,579.84
  4. Step 4: Simplify right side
    1,669.12x = 3,975,430.38
  5. Step 5: Solve for x
    x = 3,975,430.38/1,669.12
  6. Step 6: Final answer
    x = 2,381.75

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.