Home / 6,440.40-8,887.74-3,752.28

Finding the Fourth Proportional to 6,440.40, 8,887.74 and 3,752.28

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Solution

The fourth proportional to 6,440.40, 8,887.74 and 3,752.28 is: 5,178.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,440.40 : 8,887.74 = 3,752.28 : x
  2. Step 2: Convert to fraction form
    6,440.40/8,887.74 = 3,752.28/x
  3. Step 3: Cross multiply
    6,440.40x = 8,887.74 × 3,752.28
  4. Step 4: Simplify right side
    6,440.40x = 33,349,289.05
  5. Step 5: Solve for x
    x = 33,349,289.05/6,440.40
  6. Step 6: Final answer
    x = 5,178.14

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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.