Home / 2,387.16-3,580.20-926.64

Finding the Fourth Proportional to 2,387.16, 3,580.20 and 926.64

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Solution

The fourth proportional to 2,387.16, 3,580.20 and 926.64 is: 1,389.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,387.16 : 3,580.20 = 926.64 : x
  2. Step 2: Convert to fraction form
    2,387.16/3,580.20 = 926.64/x
  3. Step 3: Cross multiply
    2,387.16x = 3,580.20 × 926.64
  4. Step 4: Simplify right side
    2,387.16x = 3,317,556.53
  5. Step 5: Solve for x
    x = 3,317,556.53/2,387.16
  6. Step 6: Final answer
    x = 1,389.75

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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.