Home / 3,215.69-4,437.67-1,871.63

Finding the Fourth Proportional to 3,215.69, 4,437.67 and 1,871.63

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Solution

The fourth proportional to 3,215.69, 4,437.67 and 1,871.63 is: 2,582.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.69 : 4,437.67 = 1,871.63 : x
  2. Step 2: Convert to fraction form
    3,215.69/4,437.67 = 1,871.63/x
  3. Step 3: Cross multiply
    3,215.69x = 4,437.67 × 1,871.63
  4. Step 4: Simplify right side
    3,215.69x = 8,305,689.96
  5. Step 5: Solve for x
    x = 8,305,689.96/3,215.69
  6. Step 6: Final answer
    x = 2,582.87

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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.