Home / 1,771.05-2,440.02-1,397.91

Finding the Fourth Proportional to 1,771.05, 2,440.02 and 1,397.91

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Solution

The fourth proportional to 1,771.05, 2,440.02 and 1,397.91 is: 1,925.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,771.05 : 2,440.02 = 1,397.91 : x
  2. Step 2: Convert to fraction form
    1,771.05/2,440.02 = 1,397.91/x
  3. Step 3: Cross multiply
    1,771.05x = 2,440.02 × 1,397.91
  4. Step 4: Simplify right side
    1,771.05x = 3,410,928.36
  5. Step 5: Solve for x
    x = 3,410,928.36/1,771.05
  6. Step 6: Final answer
    x = 1,925.94

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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.