Home / 3,215.49-4,437.95-1,871.27

Finding the Fourth Proportional to 3,215.49, 4,437.95 and 1,871.27

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Solution

The fourth proportional to 3,215.49, 4,437.95 and 1,871.27 is: 2,582.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.49 : 4,437.95 = 1,871.27 : x
  2. Step 2: Convert to fraction form
    3,215.49/4,437.95 = 1,871.27/x
  3. Step 3: Cross multiply
    3,215.49x = 4,437.95 × 1,871.27
  4. Step 4: Simplify right side
    3,215.49x = 8,304,602.70
  5. Step 5: Solve for x
    x = 8,304,602.70/3,215.49
  6. Step 6: Final answer
    x = 2,582.69

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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.