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Finding the Fourth Proportional to 5,357.81, 7,393.78 and 3,000.00

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Solution

The fourth proportional to 5,357.81, 7,393.78 and 3,000.00 is: 4,140.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,357.81 : 7,393.78 = 3,000.00 : x
  2. Step 2: Convert to fraction form
    5,357.81/7,393.78 = 3,000.00/x
  3. Step 3: Cross multiply
    5,357.81x = 7,393.78 × 3,000.00
  4. Step 4: Simplify right side
    5,357.81x = 22,181,371.48
  5. Step 5: Solve for x
    x = 22,181,371.48/5,357.81
  6. Step 6: Final answer
    x = 4,140.01

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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.