Home / 5,405.30-7,458.47-3,015.16

Finding the Fourth Proportional to 5,405.30, 7,458.47 and 3,015.16

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Solution

The fourth proportional to 5,405.30, 7,458.47 and 3,015.16 is: 4,160.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,405.30 : 7,458.47 = 3,015.16 : x
  2. Step 2: Convert to fraction form
    5,405.30/7,458.47 = 3,015.16/x
  3. Step 3: Cross multiply
    5,405.30x = 7,458.47 × 3,015.16
  4. Step 4: Simplify right side
    5,405.30x = 22,488,480.52
  5. Step 5: Solve for x
    x = 22,488,480.52/5,405.30
  6. Step 6: Final answer
    x = 4,160.45

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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.