Home / 5,345.78-7,370.43-3,454.16

Finding the Fourth Proportional to 5,345.78, 7,370.43 and 3,454.16

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Solution

The fourth proportional to 5,345.78, 7,370.43 and 3,454.16 is: 4,762.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,345.78 : 7,370.43 = 3,454.16 : x
  2. Step 2: Convert to fraction form
    5,345.78/7,370.43 = 3,454.16/x
  3. Step 3: Cross multiply
    5,345.78x = 7,370.43 × 3,454.16
  4. Step 4: Simplify right side
    5,345.78x = 25,458,644.49
  5. Step 5: Solve for x
    x = 25,458,644.49/5,345.78
  6. Step 6: Final answer
    x = 4,762.38

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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.