Home / 5,075.06-7,003.67-3,085.70

Finding the Fourth Proportional to 5,075.06, 7,003.67 and 3,085.70

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Solution

The fourth proportional to 5,075.06, 7,003.67 and 3,085.70 is: 4,258.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,075.06 : 7,003.67 = 3,085.70 : x
  2. Step 2: Convert to fraction form
    5,075.06/7,003.67 = 3,085.70/x
  3. Step 3: Cross multiply
    5,075.06x = 7,003.67 × 3,085.70
  4. Step 4: Simplify right side
    5,075.06x = 21,611,174.07
  5. Step 5: Solve for x
    x = 21,611,174.07/5,075.06
  6. Step 6: Final answer
    x = 4,258.31

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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.