Home / 3,018.90-4,529.21-1,071.30

Finding the Fourth Proportional to 3,018.90, 4,529.21 and 1,071.30

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Solution

The fourth proportional to 3,018.90, 4,529.21 and 1,071.30 is: 1,607.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018.90 : 4,529.21 = 1,071.30 : x
  2. Step 2: Convert to fraction form
    3,018.90/4,529.21 = 1,071.30/x
  3. Step 3: Cross multiply
    3,018.90x = 4,529.21 × 1,071.30
  4. Step 4: Simplify right side
    3,018.90x = 4,852,137.32
  5. Step 5: Solve for x
    x = 4,852,137.32/3,018.90
  6. Step 6: Final answer
    x = 1,607.25

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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.