Home / 2,405.37-3,319.91-1,411.17

Finding the Fourth Proportional to 2,405.37, 3,319.91 and 1,411.17

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Solution

The fourth proportional to 2,405.37, 3,319.91 and 1,411.17 is: 1,947.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,405.37 : 3,319.91 = 1,411.17 : x
  2. Step 2: Convert to fraction form
    2,405.37/3,319.91 = 1,411.17/x
  3. Step 3: Cross multiply
    2,405.37x = 3,319.91 × 1,411.17
  4. Step 4: Simplify right side
    2,405.37x = 4,684,950.34
  5. Step 5: Solve for x
    x = 4,684,950.34/2,405.37
  6. Step 6: Final answer
    x = 1,947.70

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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.