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Finding the Fourth Proportional to 1,346.90, 2,020.43 and 372.98

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Solution

The fourth proportional to 1,346.90, 2,020.43 and 372.98 is: 559.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,346.90 : 2,020.43 = 372.98 : x
  2. Step 2: Convert to fraction form
    1,346.90/2,020.43 = 372.98/x
  3. Step 3: Cross multiply
    1,346.90x = 2,020.43 × 372.98
  4. Step 4: Simplify right side
    1,346.90x = 753,579.98
  5. Step 5: Solve for x
    x = 753,579.98/1,346.90
  6. Step 6: Final answer
    x = 559.49

Related Problems

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Double scale
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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.