Home / 7,124.58-10,686.24-2,740.86

Finding the Fourth Proportional to 7,124.58, 10,686.24 and 2,740.86

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Solution

The fourth proportional to 7,124.58, 10,686.24 and 2,740.86 is: 4,111.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,124.58 : 10,686.24 = 2,740.86 : x
  2. Step 2: Convert to fraction form
    7,124.58/10,686.24 = 2,740.86/x
  3. Step 3: Cross multiply
    7,124.58x = 10,686.24 × 2,740.86
  4. Step 4: Simplify right side
    7,124.58x = 29,289,487.77
  5. Step 5: Solve for x
    x = 29,289,487.77/7,124.58
  6. Step 6: Final answer
    x = 4,111.05

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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.