Home / 4,008.40-5,530.72-2,435.60

Finding the Fourth Proportional to 4,008.40, 5,530.72 and 2,435.60

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Solution

The fourth proportional to 4,008.40, 5,530.72 and 2,435.60 is: 3,360.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,008.40 : 5,530.72 = 2,435.60 : x
  2. Step 2: Convert to fraction form
    4,008.40/5,530.72 = 2,435.60/x
  3. Step 3: Cross multiply
    4,008.40x = 5,530.72 × 2,435.60
  4. Step 4: Simplify right side
    4,008.40x = 13,470,621.63
  5. Step 5: Solve for x
    x = 13,470,621.63/4,008.40
  6. Step 6: Final answer
    x = 3,360.60

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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.