Home / 7,771.40-10,720.32-4,626.98

Finding the Fourth Proportional to 7,771.40, 10,720.32 and 4,626.98

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Solution

The fourth proportional to 7,771.40, 10,720.32 and 4,626.98 is: 6,382.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,771.40 : 10,720.32 = 4,626.98 : x
  2. Step 2: Convert to fraction form
    7,771.40/10,720.32 = 4,626.98/x
  3. Step 3: Cross multiply
    7,771.40x = 10,720.32 × 4,626.98
  4. Step 4: Simplify right side
    7,771.40x = 49,602,706.23
  5. Step 5: Solve for x
    x = 49,602,706.23/7,771.40
  6. Step 6: Final answer
    x = 6,382.72

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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.