Home / 3,975.83-5,487.65-2,298.21

Finding the Fourth Proportional to 3,975.83, 5,487.65 and 2,298.21

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Solution

The fourth proportional to 3,975.83, 5,487.65 and 2,298.21 is: 3,172.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,975.83 : 5,487.65 = 2,298.21 : x
  2. Step 2: Convert to fraction form
    3,975.83/5,487.65 = 2,298.21/x
  3. Step 3: Cross multiply
    3,975.83x = 5,487.65 × 2,298.21
  4. Step 4: Simplify right side
    3,975.83x = 12,611,772.11
  5. Step 5: Solve for x
    x = 12,611,772.11/3,975.83
  6. Step 6: Final answer
    x = 3,172.11

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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.