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Finding the Fourth Proportional to 1,625.94, 2,439.26 and 530.28

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Solution

The fourth proportional to 1,625.94, 2,439.26 and 530.28 is: 795.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,625.94 : 2,439.26 = 530.28 : x
  2. Step 2: Convert to fraction form
    1,625.94/2,439.26 = 530.28/x
  3. Step 3: Cross multiply
    1,625.94x = 2,439.26 × 530.28
  4. Step 4: Simplify right side
    1,625.94x = 1,293,490.79
  5. Step 5: Solve for x
    x = 1,293,490.79/1,625.94
  6. Step 6: Final answer
    x = 795.53

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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.