Home / 3,630.13-5,445.20-2,405.32

Finding the Fourth Proportional to 3,630.13, 5,445.20 and 2,405.32

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Solution

The fourth proportional to 3,630.13, 5,445.20 and 2,405.32 is: 3,607.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,630.13 : 5,445.20 = 2,405.32 : x
  2. Step 2: Convert to fraction form
    3,630.13/5,445.20 = 2,405.32/x
  3. Step 3: Cross multiply
    3,630.13x = 5,445.20 × 2,405.32
  4. Step 4: Simplify right side
    3,630.13x = 13,097,448.46
  5. Step 5: Solve for x
    x = 13,097,448.46/3,630.13
  6. Step 6: Final answer
    x = 3,607.98

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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.