Home / 3,420.20-5,126.88-1,570.52

Finding the Fourth Proportional to 3,420.20, 5,126.88 and 1,570.52

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Solution

The fourth proportional to 3,420.20, 5,126.88 and 1,570.52 is: 2,354.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,420.20 : 5,126.88 = 1,570.52 : x
  2. Step 2: Convert to fraction form
    3,420.20/5,126.88 = 1,570.52/x
  3. Step 3: Cross multiply
    3,420.20x = 5,126.88 × 1,570.52
  4. Step 4: Simplify right side
    3,420.20x = 8,051,867.58
  5. Step 5: Solve for x
    x = 8,051,867.58/3,420.20
  6. Step 6: Final answer
    x = 2,354.21

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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.