Home / 5,165.10-7,128.14-2,927.07

Finding the Fourth Proportional to 5,165.10, 7,128.14 and 2,927.07

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Solution

The fourth proportional to 5,165.10, 7,128.14 and 2,927.07 is: 4,039.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,165.10 : 7,128.14 = 2,927.07 : x
  2. Step 2: Convert to fraction form
    5,165.10/7,128.14 = 2,927.07/x
  3. Step 3: Cross multiply
    5,165.10x = 7,128.14 × 2,927.07
  4. Step 4: Simplify right side
    5,165.10x = 20,864,550.11
  5. Step 5: Solve for x
    x = 20,864,550.11/5,165.10
  6. Step 6: Final answer
    x = 4,039.52

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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.