Home / 3,211.36-4,428.71-2,465.35

Finding the Fourth Proportional to 3,211.36, 4,428.71 and 2,465.35

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Solution

The fourth proportional to 3,211.36, 4,428.71 and 2,465.35 is: 3,399.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.36 : 4,428.71 = 2,465.35 : x
  2. Step 2: Convert to fraction form
    3,211.36/4,428.71 = 2,465.35/x
  3. Step 3: Cross multiply
    3,211.36x = 4,428.71 × 2,465.35
  4. Step 4: Simplify right side
    3,211.36x = 10,918,307.87
  5. Step 5: Solve for x
    x = 10,918,307.87/3,211.36
  6. Step 6: Final answer
    x = 3,399.90

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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.