Home / 4,007.40-5,530.86-2,515.53

Finding the Fourth Proportional to 4,007.40, 5,530.86 and 2,515.53

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Solution

The fourth proportional to 4,007.40, 5,530.86 and 2,515.53 is: 3,471.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,007.40 : 5,530.86 = 2,515.53 : x
  2. Step 2: Convert to fraction form
    4,007.40/5,530.86 = 2,515.53/x
  3. Step 3: Cross multiply
    4,007.40x = 5,530.86 × 2,515.53
  4. Step 4: Simplify right side
    4,007.40x = 13,913,042.37
  5. Step 5: Solve for x
    x = 13,913,042.37/4,007.40
  6. Step 6: Final answer
    x = 3,471.84

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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.