Home / 1,905.31-2,858.51-606.88

Finding the Fourth Proportional to 1,905.31, 2,858.51 and 606.88

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Solution

The fourth proportional to 1,905.31, 2,858.51 and 606.88 is: 910.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,905.31 : 2,858.51 = 606.88 : x
  2. Step 2: Convert to fraction form
    1,905.31/2,858.51 = 606.88/x
  3. Step 3: Cross multiply
    1,905.31x = 2,858.51 × 606.88
  4. Step 4: Simplify right side
    1,905.31x = 1,734,772.55
  5. Step 5: Solve for x
    x = 1,734,772.55/1,905.31
  6. Step 6: Final answer
    x = 910.49

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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.