Home / 5,328.48-7,988.40-2,405.28

Finding the Fourth Proportional to 5,328.48, 7,988.40 and 2,405.28

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Solution

The fourth proportional to 5,328.48, 7,988.40 and 2,405.28 is: 3,605.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,328.48 : 7,988.40 = 2,405.28 : x
  2. Step 2: Convert to fraction form
    5,328.48/7,988.40 = 2,405.28/x
  3. Step 3: Cross multiply
    5,328.48x = 7,988.40 × 2,405.28
  4. Step 4: Simplify right side
    5,328.48x = 19,214,338.75
  5. Step 5: Solve for x
    x = 19,214,338.75/5,328.48
  6. Step 6: Final answer
    x = 3,605.97

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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.