Home / 1,578.42-2,373.81-1,332.39

Finding the Fourth Proportional to 1,578.42, 2,373.81 and 1,332.39

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Solution

The fourth proportional to 1,578.42, 2,373.81 and 1,332.39 is: 2,003.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578.42 : 2,373.81 = 1,332.39 : x
  2. Step 2: Convert to fraction form
    1,578.42/2,373.81 = 1,332.39/x
  3. Step 3: Cross multiply
    1,578.42x = 2,373.81 × 1,332.39
  4. Step 4: Simplify right side
    1,578.42x = 3,162,840.71
  5. Step 5: Solve for x
    x = 3,162,840.71/1,578.42
  6. Step 6: Final answer
    x = 2,003.80

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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.