Home / 2,631.02-3,946.56-1,806.80

Finding the Fourth Proportional to 2,631.02, 3,946.56 and 1,806.80

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Solution

The fourth proportional to 2,631.02, 3,946.56 and 1,806.80 is: 2,710.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,631.02 : 3,946.56 = 1,806.80 : x
  2. Step 2: Convert to fraction form
    2,631.02/3,946.56 = 1,806.80/x
  3. Step 3: Cross multiply
    2,631.02x = 3,946.56 × 1,806.80
  4. Step 4: Simplify right side
    2,631.02x = 7,130,644.61
  5. Step 5: Solve for x
    x = 7,130,644.61/2,631.02
  6. Step 6: Final answer
    x = 2,710.22

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1.5x scale

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.