Home / 7,106.22-9,807.30-4,122.72

Finding the Fourth Proportional to 7,106.22, 9,807.30 and 4,122.72

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Solution

The fourth proportional to 7,106.22, 9,807.30 and 4,122.72 is: 5,689.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,106.22 : 9,807.30 = 4,122.72 : x
  2. Step 2: Convert to fraction form
    7,106.22/9,807.30 = 4,122.72/x
  3. Step 3: Cross multiply
    7,106.22x = 9,807.30 × 4,122.72
  4. Step 4: Simplify right side
    7,106.22x = 40,432,751.86
  5. Step 5: Solve for x
    x = 40,432,751.86/7,106.22
  6. Step 6: Final answer
    x = 5,689.77

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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.