Home / 4,427.26-6,640.89-1,140.28

Finding the Fourth Proportional to 4,427.26, 6,640.89 and 1,140.28

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Solution

The fourth proportional to 4,427.26, 6,640.89 and 1,140.28 is: 1,710.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,427.26 : 6,640.89 = 1,140.28 : x
  2. Step 2: Convert to fraction form
    4,427.26/6,640.89 = 1,140.28/x
  3. Step 3: Cross multiply
    4,427.26x = 6,640.89 × 1,140.28
  4. Step 4: Simplify right side
    4,427.26x = 7,572,453.17
  5. Step 5: Solve for x
    x = 7,572,453.17/4,427.26
  6. Step 6: Final answer
    x = 1,710.42

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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.