Home / 3,904.77-5,386.55-2,645.91

Finding the Fourth Proportional to 3,904.77, 5,386.55 and 2,645.91

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Solution

The fourth proportional to 3,904.77, 5,386.55 and 2,645.91 is: 3,649.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,904.77 : 5,386.55 = 2,645.91 : x
  2. Step 2: Convert to fraction form
    3,904.77/5,386.55 = 2,645.91/x
  3. Step 3: Cross multiply
    3,904.77x = 5,386.55 × 2,645.91
  4. Step 4: Simplify right side
    3,904.77x = 14,252,313.28
  5. Step 5: Solve for x
    x = 14,252,313.28/3,904.77
  6. Step 6: Final answer
    x = 3,649.98

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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.