Home / 3,431.68-4,735.70-1,859.76

Finding the Fourth Proportional to 3,431.68, 4,735.70 and 1,859.76

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Solution

The fourth proportional to 3,431.68, 4,735.70 and 1,859.76 is: 2,566.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,431.68 : 4,735.70 = 1,859.76 : x
  2. Step 2: Convert to fraction form
    3,431.68/4,735.70 = 1,859.76/x
  3. Step 3: Cross multiply
    3,431.68x = 4,735.70 × 1,859.76
  4. Step 4: Simplify right side
    3,431.68x = 8,807,265.43
  5. Step 5: Solve for x
    x = 8,807,265.43/3,431.68
  6. Step 6: Final answer
    x = 2,566.46

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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.