Home / 1,745.78-2,615.90-1,051.55

Finding the Fourth Proportional to 1,745.78, 2,615.90 and 1,051.55

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Solution

The fourth proportional to 1,745.78, 2,615.90 and 1,051.55 is: 1,575.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,745.78 : 2,615.90 = 1,051.55 : x
  2. Step 2: Convert to fraction form
    1,745.78/2,615.90 = 1,051.55/x
  3. Step 3: Cross multiply
    1,745.78x = 2,615.90 × 1,051.55
  4. Step 4: Simplify right side
    1,745.78x = 2,750,736.57
  5. Step 5: Solve for x
    x = 2,750,736.57/1,745.78
  6. Step 6: Final answer
    x = 1,575.65

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1.5x scale

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.