Home / 1,935.20-2,903.10-636.26

Finding the Fourth Proportional to 1,935.20, 2,903.10 and 636.26

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Solution

The fourth proportional to 1,935.20, 2,903.10 and 636.26 is: 954.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935.20 : 2,903.10 = 636.26 : x
  2. Step 2: Convert to fraction form
    1,935.20/2,903.10 = 636.26/x
  3. Step 3: Cross multiply
    1,935.20x = 2,903.10 × 636.26
  4. Step 4: Simplify right side
    1,935.20x = 1,847,126.41
  5. Step 5: Solve for x
    x = 1,847,126.41/1,935.20
  6. Step 6: Final answer
    x = 954.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.