Home / 5,313.12-7,331.12-3,075.08

Finding the Fourth Proportional to 5,313.12, 7,331.12 and 3,075.08

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Solution

The fourth proportional to 5,313.12, 7,331.12 and 3,075.08 is: 4,243.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,313.12 : 7,331.12 = 3,075.08 : x
  2. Step 2: Convert to fraction form
    5,313.12/7,331.12 = 3,075.08/x
  3. Step 3: Cross multiply
    5,313.12x = 7,331.12 × 3,075.08
  4. Step 4: Simplify right side
    5,313.12x = 22,543,780.49
  5. Step 5: Solve for x
    x = 22,543,780.49/5,313.12
  6. Step 6: Final answer
    x = 4,243.04

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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.