Home / 2,975.18-4,472.89-2,431.31

Finding the Fourth Proportional to 2,975.18, 4,472.89 and 2,431.31

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Solution

The fourth proportional to 2,975.18, 4,472.89 and 2,431.31 is: 3,655.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,975.18 : 4,472.89 = 2,431.31 : x
  2. Step 2: Convert to fraction form
    2,975.18/4,472.89 = 2,431.31/x
  3. Step 3: Cross multiply
    2,975.18x = 4,472.89 × 2,431.31
  4. Step 4: Simplify right side
    2,975.18x = 10,874,953.74
  5. Step 5: Solve for x
    x = 10,874,953.74/2,975.18
  6. Step 6: Final answer
    x = 3,655.23

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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.