Home / 1,573.41-2,171.36-983.63

Finding the Fourth Proportional to 1,573.41, 2,171.36 and 983.63

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Solution

The fourth proportional to 1,573.41, 2,171.36 and 983.63 is: 1,357.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,573.41 : 2,171.36 = 983.63 : x
  2. Step 2: Convert to fraction form
    1,573.41/2,171.36 = 983.63/x
  3. Step 3: Cross multiply
    1,573.41x = 2,171.36 × 983.63
  4. Step 4: Simplify right side
    1,573.41x = 2,135,799.06
  5. Step 5: Solve for x
    x = 2,135,799.06/1,573.41
  6. Step 6: Final answer
    x = 1,357.43

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Double scale
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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.