Home / 2,389.12-3,582.28-926.56

Finding the Fourth Proportional to 2,389.12, 3,582.28 and 926.56

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Solution

The fourth proportional to 2,389.12, 3,582.28 and 926.56 is: 1,389.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,389.12 : 3,582.28 = 926.56 : x
  2. Step 2: Convert to fraction form
    2,389.12/3,582.28 = 926.56/x
  3. Step 3: Cross multiply
    2,389.12x = 3,582.28 × 926.56
  4. Step 4: Simplify right side
    2,389.12x = 3,319,202.99
  5. Step 5: Solve for x
    x = 3,319,202.99/2,389.12
  6. Step 6: Final answer
    x = 1,389.30

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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.