Home / 3,378.24-4,652.64-3,136.32

Finding the Fourth Proportional to 3,378.24, 4,652.64 and 3,136.32

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Solution

The fourth proportional to 3,378.24, 4,652.64 and 3,136.32 is: 4,319.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,378.24 : 4,652.64 = 3,136.32 : x
  2. Step 2: Convert to fraction form
    3,378.24/4,652.64 = 3,136.32/x
  3. Step 3: Cross multiply
    3,378.24x = 4,652.64 × 3,136.32
  4. Step 4: Simplify right side
    3,378.24x = 14,592,167.88
  5. Step 5: Solve for x
    x = 14,592,167.88/3,378.24
  6. Step 6: Final answer
    x = 4,319.46

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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.