Home / 2,803.12-3,867.72-1,624.12

Finding the Fourth Proportional to 2,803.12, 3,867.72 and 1,624.12

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Solution

The fourth proportional to 2,803.12, 3,867.72 and 1,624.12 is: 2,240.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,803.12 : 3,867.72 = 1,624.12 : x
  2. Step 2: Convert to fraction form
    2,803.12/3,867.72 = 1,624.12/x
  3. Step 3: Cross multiply
    2,803.12x = 3,867.72 × 1,624.12
  4. Step 4: Simplify right side
    2,803.12x = 6,281,641.41
  5. Step 5: Solve for x
    x = 6,281,641.41/2,803.12
  6. Step 6: Final answer
    x = 2,240.95

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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.