Home / 5,142.45-7,090.02-3,370.98

Finding the Fourth Proportional to 5,142.45, 7,090.02 and 3,370.98

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Solution

The fourth proportional to 5,142.45, 7,090.02 and 3,370.98 is: 4,647.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,142.45 : 7,090.02 = 3,370.98 : x
  2. Step 2: Convert to fraction form
    5,142.45/7,090.02 = 3,370.98/x
  3. Step 3: Cross multiply
    5,142.45x = 7,090.02 × 3,370.98
  4. Step 4: Simplify right side
    5,142.45x = 23,900,315.62
  5. Step 5: Solve for x
    x = 23,900,315.62/5,142.45
  6. Step 6: Final answer
    x = 4,647.65

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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.