Home / 7,219.74-9,961.80-4,075.32

Finding the Fourth Proportional to 7,219.74, 9,961.80 and 4,075.32

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Solution

The fourth proportional to 7,219.74, 9,961.80 and 4,075.32 is: 5,623.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,219.74 : 9,961.80 = 4,075.32 : x
  2. Step 2: Convert to fraction form
    7,219.74/9,961.80 = 4,075.32/x
  3. Step 3: Cross multiply
    7,219.74x = 9,961.80 × 4,075.32
  4. Step 4: Simplify right side
    7,219.74x = 40,597,522.78
  5. Step 5: Solve for x
    x = 40,597,522.78/7,219.74
  6. Step 6: Final answer
    x = 5,623.13

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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.