Home / 3,655.58-5,485.79-1,347.08

Finding the Fourth Proportional to 3,655.58, 5,485.79 and 1,347.08

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Solution

The fourth proportional to 3,655.58, 5,485.79 and 1,347.08 is: 2,021.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,655.58 : 5,485.79 = 1,347.08 : x
  2. Step 2: Convert to fraction form
    3,655.58/5,485.79 = 1,347.08/x
  3. Step 3: Cross multiply
    3,655.58x = 5,485.79 × 1,347.08
  4. Step 4: Simplify right side
    3,655.58x = 7,389,797.99
  5. Step 5: Solve for x
    x = 7,389,797.99/3,655.58
  6. Step 6: Final answer
    x = 2,021.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.