Home / 2,923.13-4,384.35-731.70

Finding the Fourth Proportional to 2,923.13, 4,384.35 and 731.70

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Solution

The fourth proportional to 2,923.13, 4,384.35 and 731.70 is: 1,097.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,923.13 : 4,384.35 = 731.70 : x
  2. Step 2: Convert to fraction form
    2,923.13/4,384.35 = 731.70/x
  3. Step 3: Cross multiply
    2,923.13x = 4,384.35 × 731.70
  4. Step 4: Simplify right side
    2,923.13x = 3,208,028.90
  5. Step 5: Solve for x
    x = 3,208,028.90/2,923.13
  6. Step 6: Final answer
    x = 1,097.47

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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.