Home / 3,688.47-5,088.29-2,195.91

Finding the Fourth Proportional to 3,688.47, 5,088.29 and 2,195.91

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Solution

The fourth proportional to 3,688.47, 5,088.29 and 2,195.91 is: 3,029.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.47 : 5,088.29 = 2,195.91 : x
  2. Step 2: Convert to fraction form
    3,688.47/5,088.29 = 2,195.91/x
  3. Step 3: Cross multiply
    3,688.47x = 5,088.29 × 2,195.91
  4. Step 4: Simplify right side
    3,688.47x = 11,173,415.91
  5. Step 5: Solve for x
    x = 11,173,415.91/3,688.47
  6. Step 6: Final answer
    x = 3,029.28

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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.