Home / 1,485.63-2,047.91-1,170.32

Finding the Fourth Proportional to 1,485.63, 2,047.91 and 1,170.32

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Solution

The fourth proportional to 1,485.63, 2,047.91 and 1,170.32 is: 1,613.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485.63 : 2,047.91 = 1,170.32 : x
  2. Step 2: Convert to fraction form
    1,485.63/2,047.91 = 1,170.32/x
  3. Step 3: Cross multiply
    1,485.63x = 2,047.91 × 1,170.32
  4. Step 4: Simplify right side
    1,485.63x = 2,396,693.94
  5. Step 5: Solve for x
    x = 2,396,693.94/1,485.63
  6. Step 6: Final answer
    x = 1,613.25

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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.