Home / 3,555.77-5,335.47-1,913.90

Finding the Fourth Proportional to 3,555.77, 5,335.47 and 1,913.90

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Solution

The fourth proportional to 3,555.77, 5,335.47 and 1,913.90 is: 2,871.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,555.77 : 5,335.47 = 1,913.90 : x
  2. Step 2: Convert to fraction form
    3,555.77/5,335.47 = 1,913.90/x
  3. Step 3: Cross multiply
    3,555.77x = 5,335.47 × 1,913.90
  4. Step 4: Simplify right side
    3,555.77x = 10,211,529.36
  5. Step 5: Solve for x
    x = 10,211,529.36/3,555.77
  6. Step 6: Final answer
    x = 2,871.82

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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.