Home / 3,405.83-4,697.21-2,875.94

Finding the Fourth Proportional to 3,405.83, 4,697.21 and 2,875.94

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Solution

The fourth proportional to 3,405.83, 4,697.21 and 2,875.94 is: 3,966.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405.83 : 4,697.21 = 2,875.94 : x
  2. Step 2: Convert to fraction form
    3,405.83/4,697.21 = 2,875.94/x
  3. Step 3: Cross multiply
    3,405.83x = 4,697.21 × 2,875.94
  4. Step 4: Simplify right side
    3,405.83x = 13,508,870.64
  5. Step 5: Solve for x
    x = 13,508,870.64/3,405.83
  6. Step 6: Final answer
    x = 3,966.40

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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.