Home / 3,215.89-4,437.95-1,889.62

Finding the Fourth Proportional to 3,215.89, 4,437.95 and 1,889.62

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Solution

The fourth proportional to 3,215.89, 4,437.95 and 1,889.62 is: 2,607.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.89 : 4,437.95 = 1,889.62 : x
  2. Step 2: Convert to fraction form
    3,215.89/4,437.95 = 1,889.62/x
  3. Step 3: Cross multiply
    3,215.89x = 4,437.95 × 1,889.62
  4. Step 4: Simplify right side
    3,215.89x = 8,386,039.08
  5. Step 5: Solve for x
    x = 8,386,039.08/3,215.89
  6. Step 6: Final answer
    x = 2,607.69

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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.