Home / 5,491.65-8,235.45-2,717.40

Finding the Fourth Proportional to 5,491.65, 8,235.45 and 2,717.40

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Solution

The fourth proportional to 5,491.65, 8,235.45 and 2,717.40 is: 4,075.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,491.65 : 8,235.45 = 2,717.40 : x
  2. Step 2: Convert to fraction form
    5,491.65/8,235.45 = 2,717.40/x
  3. Step 3: Cross multiply
    5,491.65x = 8,235.45 × 2,717.40
  4. Step 4: Simplify right side
    5,491.65x = 22,379,011.83
  5. Step 5: Solve for x
    x = 22,379,011.83/5,491.65
  6. Step 6: Final answer
    x = 4,075.10

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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.