Home / 3,211.79-4,433.31-1,885.46

Finding the Fourth Proportional to 3,211.79, 4,433.31 and 1,885.46

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Solution

The fourth proportional to 3,211.79, 4,433.31 and 1,885.46 is: 2,602.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.79 : 4,433.31 = 1,885.46 : x
  2. Step 2: Convert to fraction form
    3,211.79/4,433.31 = 1,885.46/x
  3. Step 3: Cross multiply
    3,211.79x = 4,433.31 × 1,885.46
  4. Step 4: Simplify right side
    3,211.79x = 8,358,806.51
  5. Step 5: Solve for x
    x = 8,358,806.51/3,211.79
  6. Step 6: Final answer
    x = 2,602.54

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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.