Home / 2,384.24-3,289.95-1,389.29

Finding the Fourth Proportional to 2,384.24, 3,289.95 and 1,389.29

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Solution

The fourth proportional to 2,384.24, 3,289.95 and 1,389.29 is: 1,917.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,384.24 : 3,289.95 = 1,389.29 : x
  2. Step 2: Convert to fraction form
    2,384.24/3,289.95 = 1,389.29/x
  3. Step 3: Cross multiply
    2,384.24x = 3,289.95 × 1,389.29
  4. Step 4: Simplify right side
    2,384.24x = 4,570,678.19
  5. Step 5: Solve for x
    x = 4,570,678.19/2,384.24
  6. Step 6: Final answer
    x = 1,917.04

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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.