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Finding the Fourth Proportional to 5,605.48, 8,409.12 and 1,907.92

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Solution

The fourth proportional to 5,605.48, 8,409.12 and 1,907.92 is: 2,862.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,605.48 : 8,409.12 = 1,907.92 : x
  2. Step 2: Convert to fraction form
    5,605.48/8,409.12 = 1,907.92/x
  3. Step 3: Cross multiply
    5,605.48x = 8,409.12 × 1,907.92
  4. Step 4: Simplify right side
    5,605.48x = 16,043,928.23
  5. Step 5: Solve for x
    x = 16,043,928.23/5,605.48
  6. Step 6: Final answer
    x = 2,862.19

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1.5x scale

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.