Home / 7,448.66-10,278.99-4,091.45

Finding the Fourth Proportional to 7,448.66, 10,278.99 and 4,091.45

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Solution

The fourth proportional to 7,448.66, 10,278.99 and 4,091.45 is: 5,646.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,448.66 : 10,278.99 = 4,091.45 : x
  2. Step 2: Convert to fraction form
    7,448.66/10,278.99 = 4,091.45/x
  3. Step 3: Cross multiply
    7,448.66x = 10,278.99 × 4,091.45
  4. Step 4: Simplify right side
    7,448.66x = 42,055,922.24
  5. Step 5: Solve for x
    x = 42,055,922.24/7,448.66
  6. Step 6: Final answer
    x = 5,646.11

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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.