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Finding the Fourth Proportional to 548.74, 751.65 and 541.72

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Solution

The fourth proportional to 548.74, 751.65 and 541.72 is: 742.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.74 : 751.65 = 541.72 : x
  2. Step 2: Convert to fraction form
    548.74/751.65 = 541.72/x
  3. Step 3: Cross multiply
    548.74x = 751.65 × 541.72
  4. Step 4: Simplify right side
    548.74x = 407,183.84
  5. Step 5: Solve for x
    x = 407,183.84/548.74
  6. Step 6: Final answer
    x = 742.03

Related Problems

Find fourth proportional to 274.37, 375.83 and 270.86
Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.