Home / 5,381.17-8,071.74-1,485.56

Finding the Fourth Proportional to 5,381.17, 8,071.74 and 1,485.56

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Solution

The fourth proportional to 5,381.17, 8,071.74 and 1,485.56 is: 2,228.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,381.17 : 8,071.74 = 1,485.56 : x
  2. Step 2: Convert to fraction form
    5,381.17/8,071.74 = 1,485.56/x
  3. Step 3: Cross multiply
    5,381.17x = 8,071.74 × 1,485.56
  4. Step 4: Simplify right side
    5,381.17x = 11,991,074.25
  5. Step 5: Solve for x
    x = 11,991,074.25/5,381.17
  6. Step 6: Final answer
    x = 2,228.34

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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.