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Finding the Fourth Proportional to 7,075.03, 9,762.95 and 3,888.15

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Solution

The fourth proportional to 7,075.03, 9,762.95 and 3,888.15 is: 5,365.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,075.03 : 9,762.95 = 3,888.15 : x
  2. Step 2: Convert to fraction form
    7,075.03/9,762.95 = 3,888.15/x
  3. Step 3: Cross multiply
    7,075.03x = 9,762.95 × 3,888.15
  4. Step 4: Simplify right side
    7,075.03x = 37,959,794.60
  5. Step 5: Solve for x
    x = 37,959,794.60/7,075.03
  6. Step 6: Final answer
    x = 5,365.32

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1.5x scale

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.