Home / 5,920.95-8,838.09-5,220.35

Finding the Fourth Proportional to 5,920.95, 8,838.09 and 5,220.35

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Solution

The fourth proportional to 5,920.95, 8,838.09 and 5,220.35 is: 7,792.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,920.95 : 8,838.09 = 5,220.35 : x
  2. Step 2: Convert to fraction form
    5,920.95/8,838.09 = 5,220.35/x
  3. Step 3: Cross multiply
    5,920.95x = 8,838.09 × 5,220.35
  4. Step 4: Simplify right side
    5,920.95x = 46,137,912.08
  5. Step 5: Solve for x
    x = 46,137,912.08/5,920.95
  6. Step 6: Final answer
    x = 7,792.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.