Home / 6,287.49-9,431.05-2,127.46

Finding the Fourth Proportional to 6,287.49, 9,431.05 and 2,127.46

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Solution

The fourth proportional to 6,287.49, 9,431.05 and 2,127.46 is: 3,191.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,287.49 : 9,431.05 = 2,127.46 : x
  2. Step 2: Convert to fraction form
    6,287.49/9,431.05 = 2,127.46/x
  3. Step 3: Cross multiply
    6,287.49x = 9,431.05 × 2,127.46
  4. Step 4: Simplify right side
    6,287.49x = 20,064,181.63
  5. Step 5: Solve for x
    x = 20,064,181.63/6,287.49
  6. Step 6: Final answer
    x = 3,191.13

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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.