Home / 5,356.95-7,391.52-3,118.47

Finding the Fourth Proportional to 5,356.95, 7,391.52 and 3,118.47

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Solution

The fourth proportional to 5,356.95, 7,391.52 and 3,118.47 is: 4,302.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,356.95 : 7,391.52 = 3,118.47 : x
  2. Step 2: Convert to fraction form
    5,356.95/7,391.52 = 3,118.47/x
  3. Step 3: Cross multiply
    5,356.95x = 7,391.52 × 3,118.47
  4. Step 4: Simplify right side
    5,356.95x = 23,050,233.37
  5. Step 5: Solve for x
    x = 23,050,233.37/5,356.95
  6. Step 6: Final answer
    x = 4,302.87

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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.