Home / 7,461.06-11,191.14-2,780.16

Finding the Fourth Proportional to 7,461.06, 11,191.14 and 2,780.16

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Solution

The fourth proportional to 7,461.06, 11,191.14 and 2,780.16 is: 4,170.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,461.06 : 11,191.14 = 2,780.16 : x
  2. Step 2: Convert to fraction form
    7,461.06/11,191.14 = 2,780.16/x
  3. Step 3: Cross multiply
    7,461.06x = 11,191.14 × 2,780.16
  4. Step 4: Simplify right side
    7,461.06x = 31,113,159.78
  5. Step 5: Solve for x
    x = 31,113,159.78/7,461.06
  6. Step 6: Final answer
    x = 4,170.07

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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.