Home / 2,971.53-4,095.90-2,639.43

Finding the Fourth Proportional to 2,971.53, 4,095.90 and 2,639.43

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Solution

The fourth proportional to 2,971.53, 4,095.90 and 2,639.43 is: 3,638.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,971.53 : 4,095.90 = 2,639.43 : x
  2. Step 2: Convert to fraction form
    2,971.53/4,095.90 = 2,639.43/x
  3. Step 3: Cross multiply
    2,971.53x = 4,095.90 × 2,639.43
  4. Step 4: Simplify right side
    2,971.53x = 10,810,841.34
  5. Step 5: Solve for x
    x = 10,810,841.34/2,971.53
  6. Step 6: Final answer
    x = 3,638.14

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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.