Home / 2,857.20-4,285.80-1,624.08

Finding the Fourth Proportional to 2,857.20, 4,285.80 and 1,624.08

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Solution

The fourth proportional to 2,857.20, 4,285.80 and 1,624.08 is: 2,436.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,857.20 : 4,285.80 = 1,624.08 : x
  2. Step 2: Convert to fraction form
    2,857.20/4,285.80 = 1,624.08/x
  3. Step 3: Cross multiply
    2,857.20x = 4,285.80 × 1,624.08
  4. Step 4: Simplify right side
    2,857.20x = 6,960,482.06
  5. Step 5: Solve for x
    x = 6,960,482.06/2,857.20
  6. Step 6: Final answer
    x = 2,436.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.