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Finding the Fourth Proportional to 1,642.95, 2,460.92 and 1,529.01

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Solution

The fourth proportional to 1,642.95, 2,460.92 and 1,529.01 is: 2,290.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,642.95 : 2,460.92 = 1,529.01 : x
  2. Step 2: Convert to fraction form
    1,642.95/2,460.92 = 1,529.01/x
  3. Step 3: Cross multiply
    1,642.95x = 2,460.92 × 1,529.01
  4. Step 4: Simplify right side
    1,642.95x = 3,762,763.64
  5. Step 5: Solve for x
    x = 3,762,763.64/1,642.95
  6. Step 6: Final answer
    x = 2,290.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.