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Finding the Fourth Proportional to 7,101.56, 10,652.32 and 3,980.08

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Solution

The fourth proportional to 7,101.56, 10,652.32 and 3,980.08 is: 5,970.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,101.56 : 10,652.32 = 3,980.08 : x
  2. Step 2: Convert to fraction form
    7,101.56/10,652.32 = 3,980.08/x
  3. Step 3: Cross multiply
    7,101.56x = 10,652.32 × 3,980.08
  4. Step 4: Simplify right side
    7,101.56x = 42,397,085.79
  5. Step 5: Solve for x
    x = 42,397,085.79/7,101.56
  6. Step 6: Final answer
    x = 5,970.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.