Home / 7,940.80-11,907.35-2,393.11

Finding the Fourth Proportional to 7,940.80, 11,907.35 and 2,393.11

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Solution

The fourth proportional to 7,940.80, 11,907.35 and 2,393.11 is: 3,588.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,940.80 : 11,907.35 = 2,393.11 : x
  2. Step 2: Convert to fraction form
    7,940.80/11,907.35 = 2,393.11/x
  3. Step 3: Cross multiply
    7,940.80x = 11,907.35 × 2,393.11
  4. Step 4: Simplify right side
    7,940.80x = 28,495,598.36
  5. Step 5: Solve for x
    x = 28,495,598.36/7,940.80
  6. Step 6: Final answer
    x = 3,588.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.