Home / 1,954.98-2,697.54-1,115.64

Finding the Fourth Proportional to 1,954.98, 2,697.54 and 1,115.64

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Solution

The fourth proportional to 1,954.98, 2,697.54 and 1,115.64 is: 1,539.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,954.98 : 2,697.54 = 1,115.64 : x
  2. Step 2: Convert to fraction form
    1,954.98/2,697.54 = 1,115.64/x
  3. Step 3: Cross multiply
    1,954.98x = 2,697.54 × 1,115.64
  4. Step 4: Simplify right side
    1,954.98x = 3,009,483.53
  5. Step 5: Solve for x
    x = 3,009,483.53/1,954.98
  6. Step 6: Final answer
    x = 1,539.39

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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.