Home / 3,730.32-5,148-2,136.96

Finding the Fourth Proportional to 3,730.32, 5,148 and 2,136.96

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Solution

The fourth proportional to 3,730.32, 5,148 and 2,136.96 is: 2,949.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,730.32 : 5,148 = 2,136.96 : x
  2. Step 2: Convert to fraction form
    3,730.32/5,148 = 2,136.96/x
  3. Step 3: Cross multiply
    3,730.32x = 5,148 × 2,136.96
  4. Step 4: Simplify right side
    3,730.32x = 11,001,070.08
  5. Step 5: Solve for x
    x = 11,001,070.08/3,730.32
  6. Step 6: Final answer
    x = 2,949.10

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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.