Home / 3,140.24-4,333.08-1,813.64

Finding the Fourth Proportional to 3,140.24, 4,333.08 and 1,813.64

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Solution

The fourth proportional to 3,140.24, 4,333.08 and 1,813.64 is: 2,502.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,140.24 : 4,333.08 = 1,813.64 : x
  2. Step 2: Convert to fraction form
    3,140.24/4,333.08 = 1,813.64/x
  3. Step 3: Cross multiply
    3,140.24x = 4,333.08 × 1,813.64
  4. Step 4: Simplify right side
    3,140.24x = 7,858,647.21
  5. Step 5: Solve for x
    x = 7,858,647.21/3,140.24
  6. Step 6: Final answer
    x = 2,502.56

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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.