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Finding the Fourth Proportional to 2,605.74, 3,595.92 and 1,426.80

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Solution

The fourth proportional to 2,605.74, 3,595.92 and 1,426.80 is: 1,968.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,605.74 : 3,595.92 = 1,426.80 : x
  2. Step 2: Convert to fraction form
    2,605.74/3,595.92 = 1,426.80/x
  3. Step 3: Cross multiply
    2,605.74x = 3,595.92 × 1,426.80
  4. Step 4: Simplify right side
    2,605.74x = 5,130,658.66
  5. Step 5: Solve for x
    x = 5,130,658.66/2,605.74
  6. Step 6: Final answer
    x = 1,968.98

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1.5x scale

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.