Home / 5,384.48-7,431.55-3,395.72

Finding the Fourth Proportional to 5,384.48, 7,431.55 and 3,395.72

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Solution

The fourth proportional to 5,384.48, 7,431.55 and 3,395.72 is: 4,686.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,384.48 : 7,431.55 = 3,395.72 : x
  2. Step 2: Convert to fraction form
    5,384.48/7,431.55 = 3,395.72/x
  3. Step 3: Cross multiply
    5,384.48x = 7,431.55 × 3,395.72
  4. Step 4: Simplify right side
    5,384.48x = 25,235,473.06
  5. Step 5: Solve for x
    x = 25,235,473.06/5,384.48
  6. Step 6: Final answer
    x = 4,686.71

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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.