Home / 7,099.10-10,640.58-4,319.65

Finding the Fourth Proportional to 7,099.10, 10,640.58 and 4,319.65

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Solution

The fourth proportional to 7,099.10, 10,640.58 and 4,319.65 is: 6,474.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,099.10 : 10,640.58 = 4,319.65 : x
  2. Step 2: Convert to fraction form
    7,099.10/10,640.58 = 4,319.65/x
  3. Step 3: Cross multiply
    7,099.10x = 10,640.58 × 4,319.65
  4. Step 4: Simplify right side
    7,099.10x = 45,963,578.50
  5. Step 5: Solve for x
    x = 45,963,578.50/7,099.10
  6. Step 6: Final answer
    x = 6,474.57

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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.