Home / 7,907.31-10,911.36-4,551.21

Finding the Fourth Proportional to 7,907.31, 10,911.36 and 4,551.21

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Solution

The fourth proportional to 7,907.31, 10,911.36 and 4,551.21 is: 6,280.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,907.31 : 10,911.36 = 4,551.21 : x
  2. Step 2: Convert to fraction form
    7,907.31/10,911.36 = 4,551.21/x
  3. Step 3: Cross multiply
    7,907.31x = 10,911.36 × 4,551.21
  4. Step 4: Simplify right side
    7,907.31x = 49,659,890.75
  5. Step 5: Solve for x
    x = 49,659,890.75/7,907.31
  6. Step 6: Final answer
    x = 6,280.25

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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.