Home / 2,814.16-3,877.32-2,289.28

Finding the Fourth Proportional to 2,814.16, 3,877.32 and 2,289.28

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Solution

The fourth proportional to 2,814.16, 3,877.32 and 2,289.28 is: 3,154.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814.16 : 3,877.32 = 2,289.28 : x
  2. Step 2: Convert to fraction form
    2,814.16/3,877.32 = 2,289.28/x
  3. Step 3: Cross multiply
    2,814.16x = 3,877.32 × 2,289.28
  4. Step 4: Simplify right side
    2,814.16x = 8,876,271.13
  5. Step 5: Solve for x
    x = 8,876,271.13/2,814.16
  6. Step 6: Final answer
    x = 3,154.15

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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.