Home / 2,336.65-3,224.53-1,288.71

Finding the Fourth Proportional to 2,336.65, 3,224.53 and 1,288.71

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Solution

The fourth proportional to 2,336.65, 3,224.53 and 1,288.71 is: 1,778.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,336.65 : 3,224.53 = 1,288.71 : x
  2. Step 2: Convert to fraction form
    2,336.65/3,224.53 = 1,288.71/x
  3. Step 3: Cross multiply
    2,336.65x = 3,224.53 × 1,288.71
  4. Step 4: Simplify right side
    2,336.65x = 4,155,491.11
  5. Step 5: Solve for x
    x = 4,155,491.11/2,336.65
  6. Step 6: Final answer
    x = 1,778.40

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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.