Home / 1,409.55-1,942.93-1,110.32

Finding the Fourth Proportional to 1,409.55, 1,942.93 and 1,110.32

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Solution

The fourth proportional to 1,409.55, 1,942.93 and 1,110.32 is: 1,530.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409.55 : 1,942.93 = 1,110.32 : x
  2. Step 2: Convert to fraction form
    1,409.55/1,942.93 = 1,110.32/x
  3. Step 3: Cross multiply
    1,409.55x = 1,942.93 × 1,110.32
  4. Step 4: Simplify right side
    1,409.55x = 2,157,268.49
  5. Step 5: Solve for x
    x = 2,157,268.49/1,409.55
  6. Step 6: Final answer
    x = 1,530.47

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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.