Home / 4,931.45-7,398.89-3,080.38

Finding the Fourth Proportional to 4,931.45, 7,398.89 and 3,080.38

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Solution

The fourth proportional to 4,931.45, 7,398.89 and 3,080.38 is: 4,621.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,931.45 : 7,398.89 = 3,080.38 : x
  2. Step 2: Convert to fraction form
    4,931.45/7,398.89 = 3,080.38/x
  3. Step 3: Cross multiply
    4,931.45x = 7,398.89 × 3,080.38
  4. Step 4: Simplify right side
    4,931.45x = 22,791,392.78
  5. Step 5: Solve for x
    x = 22,791,392.78/4,931.45
  6. Step 6: Final answer
    x = 4,621.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.