Home / 1,709.78-2,358.60-1,011.02

Finding the Fourth Proportional to 1,709.78, 2,358.60 and 1,011.02

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Solution

The fourth proportional to 1,709.78, 2,358.60 and 1,011.02 is: 1,394.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,709.78 : 2,358.60 = 1,011.02 : x
  2. Step 2: Convert to fraction form
    1,709.78/2,358.60 = 1,011.02/x
  3. Step 3: Cross multiply
    1,709.78x = 2,358.60 × 1,011.02
  4. Step 4: Simplify right side
    1,709.78x = 2,384,591.77
  5. Step 5: Solve for x
    x = 2,384,591.77/1,709.78
  6. Step 6: Final answer
    x = 1,394.68

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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.