Home / 1,946.16-2,687.85-1,509.30

Finding the Fourth Proportional to 1,946.16, 2,687.85 and 1,509.30

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Solution

The fourth proportional to 1,946.16, 2,687.85 and 1,509.30 is: 2,084.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,946.16 : 2,687.85 = 1,509.30 : x
  2. Step 2: Convert to fraction form
    1,946.16/2,687.85 = 1,509.30/x
  3. Step 3: Cross multiply
    1,946.16x = 2,687.85 × 1,509.30
  4. Step 4: Simplify right side
    1,946.16x = 4,056,772.01
  5. Step 5: Solve for x
    x = 4,056,772.01/1,946.16
  6. Step 6: Final answer
    x = 2,084.50

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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.