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Finding the Fourth Proportional to 2,605.59, 3,595.68 and 1,426.68

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Solution

The fourth proportional to 2,605.59, 3,595.68 and 1,426.68 is: 1,968.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,605.59 : 3,595.68 = 1,426.68 : x
  2. Step 2: Convert to fraction form
    2,605.59/3,595.68 = 1,426.68/x
  3. Step 3: Cross multiply
    2,605.59x = 3,595.68 × 1,426.68
  4. Step 4: Simplify right side
    2,605.59x = 5,129,884.74
  5. Step 5: Solve for x
    x = 5,129,884.74/2,605.59
  6. Step 6: Final answer
    x = 1,968.80

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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.