Home / 2,491.92-3,437.64-1,607.40

Finding the Fourth Proportional to 2,491.92, 3,437.64 and 1,607.40

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Solution

The fourth proportional to 2,491.92, 3,437.64 and 1,607.40 is: 2,217.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,491.92 : 3,437.64 = 1,607.40 : x
  2. Step 2: Convert to fraction form
    2,491.92/3,437.64 = 1,607.40/x
  3. Step 3: Cross multiply
    2,491.92x = 3,437.64 × 1,607.40
  4. Step 4: Simplify right side
    2,491.92x = 5,525,662.54
  5. Step 5: Solve for x
    x = 5,525,662.54/2,491.92
  6. Step 6: Final answer
    x = 2,217.43

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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.