Home / 1,745.43-2,406.21-1,478.81

Finding the Fourth Proportional to 1,745.43, 2,406.21 and 1,478.81

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Solution

The fourth proportional to 1,745.43, 2,406.21 and 1,478.81 is: 2,038.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,745.43 : 2,406.21 = 1,478.81 : x
  2. Step 2: Convert to fraction form
    1,745.43/2,406.21 = 1,478.81/x
  3. Step 3: Cross multiply
    1,745.43x = 2,406.21 × 1,478.81
  4. Step 4: Simplify right side
    1,745.43x = 3,558,315.38
  5. Step 5: Solve for x
    x = 3,558,315.38/1,745.43
  6. Step 6: Final answer
    x = 2,038.65

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1.5x scale

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.