Home / 5,075.54-6,999.70-3,187.29

Finding the Fourth Proportional to 5,075.54, 6,999.70 and 3,187.29

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Solution

The fourth proportional to 5,075.54, 6,999.70 and 3,187.29 is: 4,395.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,075.54 : 6,999.70 = 3,187.29 : x
  2. Step 2: Convert to fraction form
    5,075.54/6,999.70 = 3,187.29/x
  3. Step 3: Cross multiply
    5,075.54x = 6,999.70 × 3,187.29
  4. Step 4: Simplify right side
    5,075.54x = 22,310,073.81
  5. Step 5: Solve for x
    x = 22,310,073.81/5,075.54
  6. Step 6: Final answer
    x = 4,395.61

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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.