Home / 4,127.02-6,190.47-1,661.78

Finding the Fourth Proportional to 4,127.02, 6,190.47 and 1,661.78

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Solution

The fourth proportional to 4,127.02, 6,190.47 and 1,661.78 is: 2,492.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,127.02 : 6,190.47 = 1,661.78 : x
  2. Step 2: Convert to fraction form
    4,127.02/6,190.47 = 1,661.78/x
  3. Step 3: Cross multiply
    4,127.02x = 6,190.47 × 1,661.78
  4. Step 4: Simplify right side
    4,127.02x = 10,287,210.04
  5. Step 5: Solve for x
    x = 10,287,210.04/4,127.02
  6. Step 6: Final answer
    x = 2,492.65

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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.