Home / 3,875.15-5,811.86-1,101.77

Finding the Fourth Proportional to 3,875.15, 5,811.86 and 1,101.77

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Solution

The fourth proportional to 3,875.15, 5,811.86 and 1,101.77 is: 1,652.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,875.15 : 5,811.86 = 1,101.77 : x
  2. Step 2: Convert to fraction form
    3,875.15/5,811.86 = 1,101.77/x
  3. Step 3: Cross multiply
    3,875.15x = 5,811.86 × 1,101.77
  4. Step 4: Simplify right side
    3,875.15x = 6,403,298.42
  5. Step 5: Solve for x
    x = 6,403,298.42/3,875.15
  6. Step 6: Final answer
    x = 1,652.40

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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.