Home / 7,271.12-10,038.28-4,791.44

Finding the Fourth Proportional to 7,271.12, 10,038.28 and 4,791.44

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Solution

The fourth proportional to 7,271.12, 10,038.28 and 4,791.44 is: 6,614.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,271.12 : 10,038.28 = 4,791.44 : x
  2. Step 2: Convert to fraction form
    7,271.12/10,038.28 = 4,791.44/x
  3. Step 3: Cross multiply
    7,271.12x = 10,038.28 × 4,791.44
  4. Step 4: Simplify right side
    7,271.12x = 48,097,816.32
  5. Step 5: Solve for x
    x = 48,097,816.32/7,271.12
  6. Step 6: Final answer
    x = 6,614.91

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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.