Home / 7,124.36-10,682.46-3,421.58

Finding the Fourth Proportional to 7,124.36, 10,682.46 and 3,421.58

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Solution

The fourth proportional to 7,124.36, 10,682.46 and 3,421.58 is: 5,130.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,124.36 : 10,682.46 = 3,421.58 : x
  2. Step 2: Convert to fraction form
    7,124.36/10,682.46 = 3,421.58/x
  3. Step 3: Cross multiply
    7,124.36x = 10,682.46 × 3,421.58
  4. Step 4: Simplify right side
    7,124.36x = 36,550,838.07
  5. Step 5: Solve for x
    x = 36,550,838.07/7,124.36
  6. Step 6: Final answer
    x = 5,130.41

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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.