Home / 2,347.87-3,240.06-1,285.65

Finding the Fourth Proportional to 2,347.87, 3,240.06 and 1,285.65

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Solution

The fourth proportional to 2,347.87, 3,240.06 and 1,285.65 is: 1,774.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,347.87 : 3,240.06 = 1,285.65 : x
  2. Step 2: Convert to fraction form
    2,347.87/3,240.06 = 1,285.65/x
  3. Step 3: Cross multiply
    2,347.87x = 3,240.06 × 1,285.65
  4. Step 4: Simplify right side
    2,347.87x = 4,165,583.14
  5. Step 5: Solve for x
    x = 4,165,583.14/2,347.87
  6. Step 6: Final answer
    x = 1,774.20

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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.