Home / 3,435.40-4,740.84-1,863.48

Finding the Fourth Proportional to 3,435.40, 4,740.84 and 1,863.48

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Solution

The fourth proportional to 3,435.40, 4,740.84 and 1,863.48 is: 2,571.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,435.40 : 4,740.84 = 1,863.48 : x
  2. Step 2: Convert to fraction form
    3,435.40/4,740.84 = 1,863.48/x
  3. Step 3: Cross multiply
    3,435.40x = 4,740.84 × 1,863.48
  4. Step 4: Simplify right side
    3,435.40x = 8,834,460.52
  5. Step 5: Solve for x
    x = 8,834,460.52/3,435.40
  6. Step 6: Final answer
    x = 2,571.60

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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.