Home / 7,339.62-11,011.02-2,145.90

Finding the Fourth Proportional to 7,339.62, 11,011.02 and 2,145.90

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Solution

The fourth proportional to 7,339.62, 11,011.02 and 2,145.90 is: 3,219.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,339.62 : 11,011.02 = 2,145.90 : x
  2. Step 2: Convert to fraction form
    7,339.62/11,011.02 = 2,145.90/x
  3. Step 3: Cross multiply
    7,339.62x = 11,011.02 × 2,145.90
  4. Step 4: Simplify right side
    7,339.62x = 23,628,547.82
  5. Step 5: Solve for x
    x = 23,628,547.82/7,339.62
  6. Step 6: Final answer
    x = 3,219.31

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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.