Home / 5,408.79-7,465.28-3,418.08

Finding the Fourth Proportional to 5,408.79, 7,465.28 and 3,418.08

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Solution

The fourth proportional to 5,408.79, 7,465.28 and 3,418.08 is: 4,717.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,408.79 : 7,465.28 = 3,418.08 : x
  2. Step 2: Convert to fraction form
    5,408.79/7,465.28 = 3,418.08/x
  3. Step 3: Cross multiply
    5,408.79x = 7,465.28 × 3,418.08
  4. Step 4: Simplify right side
    5,408.79x = 25,516,924.26
  5. Step 5: Solve for x
    x = 25,516,924.26/5,408.79
  6. Step 6: Final answer
    x = 4,717.68

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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.