Home / 5,390.70-7,447.23-4,268.04

Finding the Fourth Proportional to 5,390.70, 7,447.23 and 4,268.04

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Solution

The fourth proportional to 5,390.70, 7,447.23 and 4,268.04 is: 5,896.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.70 : 7,447.23 = 4,268.04 : x
  2. Step 2: Convert to fraction form
    5,390.70/7,447.23 = 4,268.04/x
  3. Step 3: Cross multiply
    5,390.70x = 7,447.23 × 4,268.04
  4. Step 4: Simplify right side
    5,390.70x = 31,785,075.53
  5. Step 5: Solve for x
    x = 31,785,075.53/5,390.70
  6. Step 6: Final answer
    x = 5,896.28

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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.