Home / 7,938.04-11,907.07-2,391.39

Finding the Fourth Proportional to 7,938.04, 11,907.07 and 2,391.39

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Solution

The fourth proportional to 7,938.04, 11,907.07 and 2,391.39 is: 3,587.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,938.04 : 11,907.07 = 2,391.39 : x
  2. Step 2: Convert to fraction form
    7,938.04/11,907.07 = 2,391.39/x
  3. Step 3: Cross multiply
    7,938.04x = 11,907.07 × 2,391.39
  4. Step 4: Simplify right side
    7,938.04x = 28,474,405.30
  5. Step 5: Solve for x
    x = 28,474,405.30/7,938.04
  6. Step 6: Final answer
    x = 3,587.08

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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.