Home / 3,386.76-5,077.08-1,305.45

Finding the Fourth Proportional to 3,386.76, 5,077.08 and 1,305.45

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Solution

The fourth proportional to 3,386.76, 5,077.08 and 1,305.45 is: 1,957.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,386.76 : 5,077.08 = 1,305.45 : x
  2. Step 2: Convert to fraction form
    3,386.76/5,077.08 = 1,305.45/x
  3. Step 3: Cross multiply
    3,386.76x = 5,077.08 × 1,305.45
  4. Step 4: Simplify right side
    3,386.76x = 6,627,874.09
  5. Step 5: Solve for x
    x = 6,627,874.09/3,386.76
  6. Step 6: Final answer
    x = 1,957.00

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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.