Home / 5,075.65-6,999.85-3,187.41

Finding the Fourth Proportional to 5,075.65, 6,999.85 and 3,187.41

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Solution

The fourth proportional to 5,075.65, 6,999.85 and 3,187.41 is: 4,395.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,075.65 : 6,999.85 = 3,187.41 : x
  2. Step 2: Convert to fraction form
    5,075.65/6,999.85 = 3,187.41/x
  3. Step 3: Cross multiply
    5,075.65x = 6,999.85 × 3,187.41
  4. Step 4: Simplify right side
    5,075.65x = 22,311,391.89
  5. Step 5: Solve for x
    x = 22,311,391.89/5,075.65
  6. Step 6: Final answer
    x = 4,395.77

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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.