Home / 4,102.13-5,661.47-2,309.71

Finding the Fourth Proportional to 4,102.13, 5,661.47 and 2,309.71

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Solution

The fourth proportional to 4,102.13, 5,661.47 and 2,309.71 is: 3,187.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,102.13 : 5,661.47 = 2,309.71 : x
  2. Step 2: Convert to fraction form
    4,102.13/5,661.47 = 2,309.71/x
  3. Step 3: Cross multiply
    4,102.13x = 5,661.47 × 2,309.71
  4. Step 4: Simplify right side
    4,102.13x = 13,076,328.17
  5. Step 5: Solve for x
    x = 13,076,328.17/4,102.13
  6. Step 6: Final answer
    x = 3,187.69

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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.