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Finding the Fourth Proportional to 5,370.42, 8,054.64 and 1,860.42

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Solution

The fourth proportional to 5,370.42, 8,054.64 and 1,860.42 is: 2,790.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,370.42 : 8,054.64 = 1,860.42 : x
  2. Step 2: Convert to fraction form
    5,370.42/8,054.64 = 1,860.42/x
  3. Step 3: Cross multiply
    5,370.42x = 8,054.64 × 1,860.42
  4. Step 4: Simplify right side
    5,370.42x = 14,985,013.35
  5. Step 5: Solve for x
    x = 14,985,013.35/5,370.42
  6. Step 6: Final answer
    x = 2,790.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.