Home / 3,526.20-5,291.55-1,679.40

Finding the Fourth Proportional to 3,526.20, 5,291.55 and 1,679.40

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Solution

The fourth proportional to 3,526.20, 5,291.55 and 1,679.40 is: 2,520.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,526.20 : 5,291.55 = 1,679.40 : x
  2. Step 2: Convert to fraction form
    3,526.20/5,291.55 = 1,679.40/x
  3. Step 3: Cross multiply
    3,526.20x = 5,291.55 × 1,679.40
  4. Step 4: Simplify right side
    3,526.20x = 8,886,629.07
  5. Step 5: Solve for x
    x = 8,886,629.07/3,526.20
  6. Step 6: Final answer
    x = 2,520.17

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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.