Home / 3,038.30-4,557.81-1,089.98

Finding the Fourth Proportional to 3,038.30, 4,557.81 and 1,089.98

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Solution

The fourth proportional to 3,038.30, 4,557.81 and 1,089.98 is: 1,635.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,038.30 : 4,557.81 = 1,089.98 : x
  2. Step 2: Convert to fraction form
    3,038.30/4,557.81 = 1,089.98/x
  3. Step 3: Cross multiply
    3,038.30x = 4,557.81 × 1,089.98
  4. Step 4: Simplify right side
    3,038.30x = 4,967,921.74
  5. Step 5: Solve for x
    x = 4,967,921.74/3,038.30
  6. Step 6: Final answer
    x = 1,635.10

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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.