Home / 2,971.81-4,461.36-2,818.72

Finding the Fourth Proportional to 2,971.81, 4,461.36 and 2,818.72

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Solution

The fourth proportional to 2,971.81, 4,461.36 and 2,818.72 is: 4,231.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,971.81 : 4,461.36 = 2,818.72 : x
  2. Step 2: Convert to fraction form
    2,971.81/4,461.36 = 2,818.72/x
  3. Step 3: Cross multiply
    2,971.81x = 4,461.36 × 2,818.72
  4. Step 4: Simplify right side
    2,971.81x = 12,575,324.66
  5. Step 5: Solve for x
    x = 12,575,324.66/2,971.81
  6. Step 6: Final answer
    x = 4,231.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.