Home / 3,422.34-5,130.36-1,666.35

Finding the Fourth Proportional to 3,422.34, 5,130.36 and 1,666.35

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Solution

The fourth proportional to 3,422.34, 5,130.36 and 1,666.35 is: 2,497.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,422.34 : 5,130.36 = 1,666.35 : x
  2. Step 2: Convert to fraction form
    3,422.34/5,130.36 = 1,666.35/x
  3. Step 3: Cross multiply
    3,422.34x = 5,130.36 × 1,666.35
  4. Step 4: Simplify right side
    3,422.34x = 8,548,975.39
  5. Step 5: Solve for x
    x = 8,548,975.39/3,422.34
  6. Step 6: Final answer
    x = 2,497.99

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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.