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Finding the Fourth Proportional to 7,037.80, 9,713.11 and 3,972.27

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Solution

The fourth proportional to 7,037.80, 9,713.11 and 3,972.27 is: 5,482.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,037.80 : 9,713.11 = 3,972.27 : x
  2. Step 2: Convert to fraction form
    7,037.80/9,713.11 = 3,972.27/x
  3. Step 3: Cross multiply
    7,037.80x = 9,713.11 × 3,972.27
  4. Step 4: Simplify right side
    7,037.80x = 38,583,075.60
  5. Step 5: Solve for x
    x = 38,583,075.60/7,037.80
  6. Step 6: Final answer
    x = 5,482.26

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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.