Home / 7,108.72-9,810.75-4,125.22

Finding the Fourth Proportional to 7,108.72, 9,810.75 and 4,125.22

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Solution

The fourth proportional to 7,108.72, 9,810.75 and 4,125.22 is: 5,693.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,108.72 : 9,810.75 = 4,125.22 : x
  2. Step 2: Convert to fraction form
    7,108.72/9,810.75 = 4,125.22/x
  3. Step 3: Cross multiply
    7,108.72x = 9,810.75 × 4,125.22
  4. Step 4: Simplify right side
    7,108.72x = 40,471,502.12
  5. Step 5: Solve for x
    x = 40,471,502.12/7,108.72
  6. Step 6: Final answer
    x = 5,693.22

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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.