Home / 5,426.84-8,140.32-1,729.05

Finding the Fourth Proportional to 5,426.84, 8,140.32 and 1,729.05

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Solution

The fourth proportional to 5,426.84, 8,140.32 and 1,729.05 is: 2,593.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,426.84 : 8,140.32 = 1,729.05 : x
  2. Step 2: Convert to fraction form
    5,426.84/8,140.32 = 1,729.05/x
  3. Step 3: Cross multiply
    5,426.84x = 8,140.32 × 1,729.05
  4. Step 4: Simplify right side
    5,426.84x = 14,075,020.30
  5. Step 5: Solve for x
    x = 14,075,020.30/5,426.84
  6. Step 6: Final answer
    x = 2,593.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.