Home / 5,521.65-7,620-3,003.93

Finding the Fourth Proportional to 5,521.65, 7,620 and 3,003.93

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Solution

The fourth proportional to 5,521.65, 7,620 and 3,003.93 is: 4,145.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,521.65 : 7,620 = 3,003.93 : x
  2. Step 2: Convert to fraction form
    5,521.65/7,620 = 3,003.93/x
  3. Step 3: Cross multiply
    5,521.65x = 7,620 × 3,003.93
  4. Step 4: Simplify right side
    5,521.65x = 22,889,946.60
  5. Step 5: Solve for x
    x = 22,889,946.60/5,521.65
  6. Step 6: Final answer
    x = 4,145.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.