Home / 5,409.72-7,465.68-3,285.45

Finding the Fourth Proportional to 5,409.72, 7,465.68 and 3,285.45

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Solution

The fourth proportional to 5,409.72, 7,465.68 and 3,285.45 is: 4,534.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,409.72 : 7,465.68 = 3,285.45 : x
  2. Step 2: Convert to fraction form
    5,409.72/7,465.68 = 3,285.45/x
  3. Step 3: Cross multiply
    5,409.72x = 7,465.68 × 3,285.45
  4. Step 4: Simplify right side
    5,409.72x = 24,528,118.36
  5. Step 5: Solve for x
    x = 24,528,118.36/5,409.72
  6. Step 6: Final answer
    x = 4,534.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.