Home / 3,435.28-4,740.70-1,863.40

Finding the Fourth Proportional to 3,435.28, 4,740.70 and 1,863.40

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Solution

The fourth proportional to 3,435.28, 4,740.70 and 1,863.40 is: 2,571.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,435.28 : 4,740.70 = 1,863.40 : x
  2. Step 2: Convert to fraction form
    3,435.28/4,740.70 = 1,863.40/x
  3. Step 3: Cross multiply
    3,435.28x = 4,740.70 × 1,863.40
  4. Step 4: Simplify right side
    3,435.28x = 8,833,820.38
  5. Step 5: Solve for x
    x = 8,833,820.38/3,435.28
  6. Step 6: Final answer
    x = 2,571.50

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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.