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Finding the Fourth Proportional to 1,591.51, 2,384.63 and 617.08

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Solution

The fourth proportional to 1,591.51, 2,384.63 and 617.08 is: 924.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,591.51 : 2,384.63 = 617.08 : x
  2. Step 2: Convert to fraction form
    1,591.51/2,384.63 = 617.08/x
  3. Step 3: Cross multiply
    1,591.51x = 2,384.63 × 617.08
  4. Step 4: Simplify right side
    1,591.51x = 1,471,507.48
  5. Step 5: Solve for x
    x = 1,471,507.48/1,591.51
  6. Step 6: Final answer
    x = 924.60

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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.