Home / 3,395.60-4,685.80-1,903.56

Finding the Fourth Proportional to 3,395.60, 4,685.80 and 1,903.56

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Solution

The fourth proportional to 3,395.60, 4,685.80 and 1,903.56 is: 2,626.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,395.60 : 4,685.80 = 1,903.56 : x
  2. Step 2: Convert to fraction form
    3,395.60/4,685.80 = 1,903.56/x
  3. Step 3: Cross multiply
    3,395.60x = 4,685.80 × 1,903.56
  4. Step 4: Simplify right side
    3,395.60x = 8,919,701.45
  5. Step 5: Solve for x
    x = 8,919,701.45/3,395.60
  6. Step 6: Final answer
    x = 2,626.84

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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.