Home / 5,316.84-7,338.74-3,080.21

Finding the Fourth Proportional to 5,316.84, 7,338.74 and 3,080.21

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Solution

The fourth proportional to 5,316.84, 7,338.74 and 3,080.21 is: 4,251.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,316.84 : 7,338.74 = 3,080.21 : x
  2. Step 2: Convert to fraction form
    5,316.84/7,338.74 = 3,080.21/x
  3. Step 3: Cross multiply
    5,316.84x = 7,338.74 × 3,080.21
  4. Step 4: Simplify right side
    5,316.84x = 22,604,808.24
  5. Step 5: Solve for x
    x = 22,604,808.24/5,316.84
  6. Step 6: Final answer
    x = 4,251.55

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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.