Home / 3,880.64-5,352.90-2,387.36

Finding the Fourth Proportional to 3,880.64, 5,352.90 and 2,387.36

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Solution

The fourth proportional to 3,880.64, 5,352.90 and 2,387.36 is: 3,293.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,880.64 : 5,352.90 = 2,387.36 : x
  2. Step 2: Convert to fraction form
    3,880.64/5,352.90 = 2,387.36/x
  3. Step 3: Cross multiply
    3,880.64x = 5,352.90 × 2,387.36
  4. Step 4: Simplify right side
    3,880.64x = 12,779,299.34
  5. Step 5: Solve for x
    x = 12,779,299.34/3,880.64
  6. Step 6: Final answer
    x = 3,293.09

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1.5x scale

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.