Home / 7,621.29-10,521.90-4,791.06

Finding the Fourth Proportional to 7,621.29, 10,521.90 and 4,791.06

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Solution

The fourth proportional to 7,621.29, 10,521.90 and 4,791.06 is: 6,614.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,621.29 : 10,521.90 = 4,791.06 : x
  2. Step 2: Convert to fraction form
    7,621.29/10,521.90 = 4,791.06/x
  3. Step 3: Cross multiply
    7,621.29x = 10,521.90 × 4,791.06
  4. Step 4: Simplify right side
    7,621.29x = 50,411,054.21
  5. Step 5: Solve for x
    x = 50,411,054.21/7,621.29
  6. Step 6: Final answer
    x = 6,614.50

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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.