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Finding the Fourth Proportional to 2,559.65, 3,532.29 and 1,455.65

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Solution

The fourth proportional to 2,559.65, 3,532.29 and 1,455.65 is: 2,008.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,559.65 : 3,532.29 = 1,455.65 : x
  2. Step 2: Convert to fraction form
    2,559.65/3,532.29 = 1,455.65/x
  3. Step 3: Cross multiply
    2,559.65x = 3,532.29 × 1,455.65
  4. Step 4: Simplify right side
    2,559.65x = 5,141,777.94
  5. Step 5: Solve for x
    x = 5,141,777.94/2,559.65
  6. Step 6: Final answer
    x = 2,008.78

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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.