Home / 2,389.90-3,299.18-1,594.55

Finding the Fourth Proportional to 2,389.90, 3,299.18 and 1,594.55

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Solution

The fourth proportional to 2,389.90, 3,299.18 and 1,594.55 is: 2,201.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,389.90 : 3,299.18 = 1,594.55 : x
  2. Step 2: Convert to fraction form
    2,389.90/3,299.18 = 1,594.55/x
  3. Step 3: Cross multiply
    2,389.90x = 3,299.18 × 1,594.55
  4. Step 4: Simplify right side
    2,389.90x = 5,260,707.47
  5. Step 5: Solve for x
    x = 5,260,707.47/2,389.90
  6. Step 6: Final answer
    x = 2,201.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.