Home / 5,420.16-8,083.22-4,895.28

Finding the Fourth Proportional to 5,420.16, 8,083.22 and 4,895.28

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Solution

The fourth proportional to 5,420.16, 8,083.22 and 4,895.28 is: 7,300.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420.16 : 8,083.22 = 4,895.28 : x
  2. Step 2: Convert to fraction form
    5,420.16/8,083.22 = 4,895.28/x
  3. Step 3: Cross multiply
    5,420.16x = 8,083.22 × 4,895.28
  4. Step 4: Simplify right side
    5,420.16x = 39,569,600.73
  5. Step 5: Solve for x
    x = 39,569,600.73/5,420.16
  6. Step 6: Final answer
    x = 7,300.45

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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.