Home / 7,090.47-10,635.70-2,160.15

Finding the Fourth Proportional to 7,090.47, 10,635.70 and 2,160.15

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Solution

The fourth proportional to 7,090.47, 10,635.70 and 2,160.15 is: 3,240.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,090.47 : 10,635.70 = 2,160.15 : x
  2. Step 2: Convert to fraction form
    7,090.47/10,635.70 = 2,160.15/x
  3. Step 3: Cross multiply
    7,090.47x = 10,635.70 × 2,160.15
  4. Step 4: Simplify right side
    7,090.47x = 22,974,701.95
  5. Step 5: Solve for x
    x = 22,974,701.95/7,090.47
  6. Step 6: Final answer
    x = 3,240.22

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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.