Home / 5,314.29-7,334.61-3,075.78

Finding the Fourth Proportional to 5,314.29, 7,334.61 and 3,075.78

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Solution

The fourth proportional to 5,314.29, 7,334.61 and 3,075.78 is: 4,245.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,314.29 : 7,334.61 = 3,075.78 : x
  2. Step 2: Convert to fraction form
    5,314.29/7,334.61 = 3,075.78/x
  3. Step 3: Cross multiply
    5,314.29x = 7,334.61 × 3,075.78
  4. Step 4: Simplify right side
    5,314.29x = 22,559,646.75
  5. Step 5: Solve for x
    x = 22,559,646.75/5,314.29
  6. Step 6: Final answer
    x = 4,245.09

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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.