Home / 3,395.64-4,685.75-1,903.55

Finding the Fourth Proportional to 3,395.64, 4,685.75 and 1,903.55

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Solution

The fourth proportional to 3,395.64, 4,685.75 and 1,903.55 is: 2,626.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,395.64 : 4,685.75 = 1,903.55 : x
  2. Step 2: Convert to fraction form
    3,395.64/4,685.75 = 1,903.55/x
  3. Step 3: Cross multiply
    3,395.64x = 4,685.75 × 1,903.55
  4. Step 4: Simplify right side
    3,395.64x = 8,919,526.47
  5. Step 5: Solve for x
    x = 8,919,526.47/3,395.64
  6. Step 6: Final answer
    x = 2,626.76

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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.