Home / 3,148.12-4,343.25-1,888.30

Finding the Fourth Proportional to 3,148.12, 4,343.25 and 1,888.30

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Solution

The fourth proportional to 3,148.12, 4,343.25 and 1,888.30 is: 2,605.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,148.12 : 4,343.25 = 1,888.30 : x
  2. Step 2: Convert to fraction form
    3,148.12/4,343.25 = 1,888.30/x
  3. Step 3: Cross multiply
    3,148.12x = 4,343.25 × 1,888.30
  4. Step 4: Simplify right side
    3,148.12x = 8,201,358.98
  5. Step 5: Solve for x
    x = 8,201,358.98/3,148.12
  6. Step 6: Final answer
    x = 2,605.16

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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.