Home / 2,125.53-3,186.14-1,152.45

Finding the Fourth Proportional to 2,125.53, 3,186.14 and 1,152.45

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Solution

The fourth proportional to 2,125.53, 3,186.14 and 1,152.45 is: 1,727.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,125.53 : 3,186.14 = 1,152.45 : x
  2. Step 2: Convert to fraction form
    2,125.53/3,186.14 = 1,152.45/x
  3. Step 3: Cross multiply
    2,125.53x = 3,186.14 × 1,152.45
  4. Step 4: Simplify right side
    2,125.53x = 3,671,861.28
  5. Step 5: Solve for x
    x = 3,671,861.28/2,125.53
  6. Step 6: Final answer
    x = 1,727.50

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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.