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Finding the Fourth Proportional to 1,090.98, 1,505.56 and 593.63

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Solution

The fourth proportional to 1,090.98, 1,505.56 and 593.63 is: 819.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090.98 : 1,505.56 = 593.63 : x
  2. Step 2: Convert to fraction form
    1,090.98/1,505.56 = 593.63/x
  3. Step 3: Cross multiply
    1,090.98x = 1,505.56 × 593.63
  4. Step 4: Simplify right side
    1,090.98x = 893,745.58
  5. Step 5: Solve for x
    x = 893,745.58/1,090.98
  6. Step 6: Final answer
    x = 819.21

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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.