Home / 3,315.50-4,973.28-1,007

Finding the Fourth Proportional to 3,315.50, 4,973.28 and 1,007

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Solution

The fourth proportional to 3,315.50, 4,973.28 and 1,007 is: 1,510.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,315.50 : 4,973.28 = 1,007 : x
  2. Step 2: Convert to fraction form
    3,315.50/4,973.28 = 1,007/x
  3. Step 3: Cross multiply
    3,315.50x = 4,973.28 × 1,007
  4. Step 4: Simplify right side
    3,315.50x = 5,008,092.96
  5. Step 5: Solve for x
    x = 5,008,092.96/3,315.50
  6. Step 6: Final answer
    x = 1,510.51

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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.