Home / 4,051.16-6,078.51-1,420.56

Finding the Fourth Proportional to 4,051.16, 6,078.51 and 1,420.56

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Solution

The fourth proportional to 4,051.16, 6,078.51 and 1,420.56 is: 2,131.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,051.16 : 6,078.51 = 1,420.56 : x
  2. Step 2: Convert to fraction form
    4,051.16/6,078.51 = 1,420.56/x
  3. Step 3: Cross multiply
    4,051.16x = 6,078.51 × 1,420.56
  4. Step 4: Simplify right side
    4,051.16x = 8,634,888.17
  5. Step 5: Solve for x
    x = 8,634,888.17/4,051.16
  6. Step 6: Final answer
    x = 2,131.46

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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.