Home / 2,504.12-3,455.63-1,385.03

Finding the Fourth Proportional to 2,504.12, 3,455.63 and 1,385.03

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Solution

The fourth proportional to 2,504.12, 3,455.63 and 1,385.03 is: 1,911.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,504.12 : 3,455.63 = 1,385.03 : x
  2. Step 2: Convert to fraction form
    2,504.12/3,455.63 = 1,385.03/x
  3. Step 3: Cross multiply
    2,504.12x = 3,455.63 × 1,385.03
  4. Step 4: Simplify right side
    2,504.12x = 4,786,158.13
  5. Step 5: Solve for x
    x = 4,786,158.13/2,504.12
  6. Step 6: Final answer
    x = 1,911.32

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Half scale
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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.