Home / 3,505.74-5,259.09-1,284.28

Finding the Fourth Proportional to 3,505.74, 5,259.09 and 1,284.28

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Solution

The fourth proportional to 3,505.74, 5,259.09 and 1,284.28 is: 1,926.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,505.74 : 5,259.09 = 1,284.28 : x
  2. Step 2: Convert to fraction form
    3,505.74/5,259.09 = 1,284.28/x
  3. Step 3: Cross multiply
    3,505.74x = 5,259.09 × 1,284.28
  4. Step 4: Simplify right side
    3,505.74x = 6,754,144.11
  5. Step 5: Solve for x
    x = 6,754,144.11/3,505.74
  6. Step 6: Final answer
    x = 1,926.60

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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.