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Finding the Fourth Proportional to 5,490, 8,235 and 1,594.51

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Solution

The fourth proportional to 5,490, 8,235 and 1,594.51 is: 2,391.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,490 : 8,235 = 1,594.51 : x
  2. Step 2: Convert to fraction form
    5,490/8,235 = 1,594.51/x
  3. Step 3: Cross multiply
    5,490x = 8,235 × 1,594.51
  4. Step 4: Simplify right side
    5,490x = 13,130,769.26
  5. Step 5: Solve for x
    x = 13,130,769.26/5,490
  6. Step 6: Final answer
    x = 2,391.76

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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.