Home / 1,678.08-2,512.53-1,475.58

Finding the Fourth Proportional to 1,678.08, 2,512.53 and 1,475.58

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Solution

The fourth proportional to 1,678.08, 2,512.53 and 1,475.58 is: 2,209.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678.08 : 2,512.53 = 1,475.58 : x
  2. Step 2: Convert to fraction form
    1,678.08/2,512.53 = 1,475.58/x
  3. Step 3: Cross multiply
    1,678.08x = 2,512.53 × 1,475.58
  4. Step 4: Simplify right side
    1,678.08x = 3,707,439.02
  5. Step 5: Solve for x
    x = 3,707,439.02/1,678.08
  6. Step 6: Final answer
    x = 2,209.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.