Home / 7,182.18-9,911.34-4,038.35

Finding the Fourth Proportional to 7,182.18, 9,911.34 and 4,038.35

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Solution

The fourth proportional to 7,182.18, 9,911.34 and 4,038.35 is: 5,572.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,182.18 : 9,911.34 = 4,038.35 : x
  2. Step 2: Convert to fraction form
    7,182.18/9,911.34 = 4,038.35/x
  3. Step 3: Cross multiply
    7,182.18x = 9,911.34 × 4,038.35
  4. Step 4: Simplify right side
    7,182.18x = 40,025,410.33
  5. Step 5: Solve for x
    x = 40,025,410.33/7,182.18
  6. Step 6: Final answer
    x = 5,572.88

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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.