Home / 3,405.60-5,133.56-3,124.80

Finding the Fourth Proportional to 3,405.60, 5,133.56 and 3,124.80

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Solution

The fourth proportional to 3,405.60, 5,133.56 and 3,124.80 is: 4,710.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405.60 : 5,133.56 = 3,124.80 : x
  2. Step 2: Convert to fraction form
    3,405.60/5,133.56 = 3,124.80/x
  3. Step 3: Cross multiply
    3,405.60x = 5,133.56 × 3,124.80
  4. Step 4: Simplify right side
    3,405.60x = 16,041,332.66
  5. Step 5: Solve for x
    x = 16,041,332.66/3,405.60
  6. Step 6: Final answer
    x = 4,710.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.