Home / 1,423.06-2,134.60-383.07

Finding the Fourth Proportional to 1,423.06, 2,134.60 and 383.07

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Solution

The fourth proportional to 1,423.06, 2,134.60 and 383.07 is: 574.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423.06 : 2,134.60 = 383.07 : x
  2. Step 2: Convert to fraction form
    1,423.06/2,134.60 = 383.07/x
  3. Step 3: Cross multiply
    1,423.06x = 2,134.60 × 383.07
  4. Step 4: Simplify right side
    1,423.06x = 817,701.22
  5. Step 5: Solve for x
    x = 817,701.22/1,423.06
  6. Step 6: Final answer
    x = 574.61

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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.