Home / 3,528.12-5,292.60-931.08

Finding the Fourth Proportional to 3,528.12, 5,292.60 and 931.08

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Solution

The fourth proportional to 3,528.12, 5,292.60 and 931.08 is: 1,396.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,528.12 : 5,292.60 = 931.08 : x
  2. Step 2: Convert to fraction form
    3,528.12/5,292.60 = 931.08/x
  3. Step 3: Cross multiply
    3,528.12x = 5,292.60 × 931.08
  4. Step 4: Simplify right side
    3,528.12x = 4,927,834.01
  5. Step 5: Solve for x
    x = 4,927,834.01/3,528.12
  6. Step 6: Final answer
    x = 1,396.73

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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.