Home / 7,219.13-9,962.39-4,075.92

Finding the Fourth Proportional to 7,219.13, 9,962.39 and 4,075.92

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Solution

The fourth proportional to 7,219.13, 9,962.39 and 4,075.92 is: 5,624.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,219.13 : 9,962.39 = 4,075.92 : x
  2. Step 2: Convert to fraction form
    7,219.13/9,962.39 = 4,075.92/x
  3. Step 3: Cross multiply
    7,219.13x = 9,962.39 × 4,075.92
  4. Step 4: Simplify right side
    7,219.13x = 40,605,914.84
  5. Step 5: Solve for x
    x = 40,605,914.84/7,219.13
  6. Step 6: Final answer
    x = 5,624.77

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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.