Home / 1,591.41-2,386.30-1,072.20

Finding the Fourth Proportional to 1,591.41, 2,386.30 and 1,072.20

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Solution

The fourth proportional to 1,591.41, 2,386.30 and 1,072.20 is: 1,607.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,591.41 : 2,386.30 = 1,072.20 : x
  2. Step 2: Convert to fraction form
    1,591.41/2,386.30 = 1,072.20/x
  3. Step 3: Cross multiply
    1,591.41x = 2,386.30 × 1,072.20
  4. Step 4: Simplify right side
    1,591.41x = 2,558,590.86
  5. Step 5: Solve for x
    x = 2,558,590.86/1,591.41
  6. Step 6: Final answer
    x = 1,607.75

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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.