Home / 2,389.68-3,585.58-1,292.76

Finding the Fourth Proportional to 2,389.68, 3,585.58 and 1,292.76

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Solution

The fourth proportional to 2,389.68, 3,585.58 and 1,292.76 is: 1,939.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,389.68 : 3,585.58 = 1,292.76 : x
  2. Step 2: Convert to fraction form
    2,389.68/3,585.58 = 1,292.76/x
  3. Step 3: Cross multiply
    2,389.68x = 3,585.58 × 1,292.76
  4. Step 4: Simplify right side
    2,389.68x = 4,635,291.17
  5. Step 5: Solve for x
    x = 4,635,291.17/2,389.68
  6. Step 6: Final answer
    x = 1,939.71

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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.