Home / 1,485.64-2,047.84-1,170.42

Finding the Fourth Proportional to 1,485.64, 2,047.84 and 1,170.42

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Solution

The fourth proportional to 1,485.64, 2,047.84 and 1,170.42 is: 1,613.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485.64 : 2,047.84 = 1,170.42 : x
  2. Step 2: Convert to fraction form
    1,485.64/2,047.84 = 1,170.42/x
  3. Step 3: Cross multiply
    1,485.64x = 2,047.84 × 1,170.42
  4. Step 4: Simplify right side
    1,485.64x = 2,396,832.89
  5. Step 5: Solve for x
    x = 2,396,832.89/1,485.64
  6. Step 6: Final answer
    x = 1,613.33

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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.