Home / 7,100.11-9,798.48-4,116.88

Finding the Fourth Proportional to 7,100.11, 9,798.48 and 4,116.88

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Solution

The fourth proportional to 7,100.11, 9,798.48 and 4,116.88 is: 5,681.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,100.11 : 9,798.48 = 4,116.88 : x
  2. Step 2: Convert to fraction form
    7,100.11/9,798.48 = 4,116.88/x
  3. Step 3: Cross multiply
    7,100.11x = 9,798.48 × 4,116.88
  4. Step 4: Simplify right side
    7,100.11x = 40,339,166.34
  5. Step 5: Solve for x
    x = 40,339,166.34/7,100.11
  6. Step 6: Final answer
    x = 5,681.48

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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.