Home / 7,085.18-9,776.93-4,101.20

Finding the Fourth Proportional to 7,085.18, 9,776.93 and 4,101.20

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Solution

The fourth proportional to 7,085.18, 9,776.93 and 4,101.20 is: 5,659.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,085.18 : 9,776.93 = 4,101.20 : x
  2. Step 2: Convert to fraction form
    7,085.18/9,776.93 = 4,101.20/x
  3. Step 3: Cross multiply
    7,085.18x = 9,776.93 × 4,101.20
  4. Step 4: Simplify right side
    7,085.18x = 40,097,096.43
  5. Step 5: Solve for x
    x = 40,097,096.43/7,085.18
  6. Step 6: Final answer
    x = 5,659.30

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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.