Home / 5,636.32-7,780.64-3,751.24

Finding the Fourth Proportional to 5,636.32, 7,780.64 and 3,751.24

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Solution

The fourth proportional to 5,636.32, 7,780.64 and 3,751.24 is: 5,178.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,636.32 : 7,780.64 = 3,751.24 : x
  2. Step 2: Convert to fraction form
    5,636.32/7,780.64 = 3,751.24/x
  3. Step 3: Cross multiply
    5,636.32x = 7,780.64 × 3,751.24
  4. Step 4: Simplify right side
    5,636.32x = 29,187,047.99
  5. Step 5: Solve for x
    x = 29,187,047.99/5,636.32
  6. Step 6: Final answer
    x = 5,178.39

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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.