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Finding the Fourth Proportional to 1,090.85, 1,505.38 and 593.49

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Solution

The fourth proportional to 1,090.85, 1,505.38 and 593.49 is: 819.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090.85 : 1,505.38 = 593.49 : x
  2. Step 2: Convert to fraction form
    1,090.85/1,505.38 = 593.49/x
  3. Step 3: Cross multiply
    1,090.85x = 1,505.38 × 593.49
  4. Step 4: Simplify right side
    1,090.85x = 893,427.78
  5. Step 5: Solve for x
    x = 893,427.78/1,090.85
  6. Step 6: Final answer
    x = 819.02

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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.