Home / 7,477.80-11,220.75-2,801.00

Finding the Fourth Proportional to 7,477.80, 11,220.75 and 2,801.00

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Solution

The fourth proportional to 7,477.80, 11,220.75 and 2,801.00 is: 4,203.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,477.80 : 11,220.75 = 2,801.00 : x
  2. Step 2: Convert to fraction form
    7,477.80/11,220.75 = 2,801.00/x
  3. Step 3: Cross multiply
    7,477.80x = 11,220.75 × 2,801.00
  4. Step 4: Simplify right side
    7,477.80x = 31,429,264.65
  5. Step 5: Solve for x
    x = 31,429,264.65/7,477.80
  6. Step 6: Final answer
    x = 4,203.01

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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.