Home / 5,391.49-7,438.47-4,395.05

Finding the Fourth Proportional to 5,391.49, 7,438.47 and 4,395.05

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Solution

The fourth proportional to 5,391.49, 7,438.47 and 4,395.05 is: 6,063.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,391.49 : 7,438.47 = 4,395.05 : x
  2. Step 2: Convert to fraction form
    5,391.49/7,438.47 = 4,395.05/x
  3. Step 3: Cross multiply
    5,391.49x = 7,438.47 × 4,395.05
  4. Step 4: Simplify right side
    5,391.49x = 32,692,447.57
  5. Step 5: Solve for x
    x = 32,692,447.57/5,391.49
  6. Step 6: Final answer
    x = 6,063.72

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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.