Home / 1,694.06-2,337.27-947.90

Finding the Fourth Proportional to 1,694.06, 2,337.27 and 947.90

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Solution

The fourth proportional to 1,694.06, 2,337.27 and 947.90 is: 1,307.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,694.06 : 2,337.27 = 947.90 : x
  2. Step 2: Convert to fraction form
    1,694.06/2,337.27 = 947.90/x
  3. Step 3: Cross multiply
    1,694.06x = 2,337.27 × 947.90
  4. Step 4: Simplify right side
    1,694.06x = 2,215,498.23
  5. Step 5: Solve for x
    x = 2,215,498.23/1,694.06
  6. Step 6: Final answer
    x = 1,307.80

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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.