Home / 2,125.55-3,186.13-1,539.10

Finding the Fourth Proportional to 2,125.55, 3,186.13 and 1,539.10

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Solution

The fourth proportional to 2,125.55, 3,186.13 and 1,539.10 is: 2,307.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.55 : 3,186.13 = 1,539.10 : x
  2. Step 2: Convert to fraction form
    2,125.55/3,186.13 = 1,539.10/x
  3. Step 3: Cross multiply
    2,125.55x = 3,186.13 × 1,539.10
  4. Step 4: Simplify right side
    2,125.55x = 4,903,772.68
  5. Step 5: Solve for x
    x = 4,903,772.68/2,125.55
  6. Step 6: Final answer
    x = 2,307.06

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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.