Home / 1,745.79-2,408.91-1,116.87

Finding the Fourth Proportional to 1,745.79, 2,408.91 and 1,116.87

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Solution

The fourth proportional to 1,745.79, 2,408.91 and 1,116.87 is: 1,541.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,745.79 : 2,408.91 = 1,116.87 : x
  2. Step 2: Convert to fraction form
    1,745.79/2,408.91 = 1,116.87/x
  3. Step 3: Cross multiply
    1,745.79x = 2,408.91 × 1,116.87
  4. Step 4: Simplify right side
    1,745.79x = 2,690,439.64
  5. Step 5: Solve for x
    x = 2,690,439.64/1,745.79
  6. Step 6: Final answer
    x = 1,541.10

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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.