Home / 7,817.19-10,787.67-4,280.46

Finding the Fourth Proportional to 7,817.19, 10,787.67 and 4,280.46

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Solution

The fourth proportional to 7,817.19, 10,787.67 and 4,280.46 is: 5,907.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,817.19 : 10,787.67 = 4,280.46 : x
  2. Step 2: Convert to fraction form
    7,817.19/10,787.67 = 4,280.46/x
  3. Step 3: Cross multiply
    7,817.19x = 10,787.67 × 4,280.46
  4. Step 4: Simplify right side
    7,817.19x = 46,176,189.93
  5. Step 5: Solve for x
    x = 46,176,189.93/7,817.19
  6. Step 6: Final answer
    x = 5,907.01

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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.