Home / 1,857.30-2,770.76-1,551.12

Finding the Fourth Proportional to 1,857.30, 2,770.76 and 1,551.12

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Solution

The fourth proportional to 1,857.30, 2,770.76 and 1,551.12 is: 2,313.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,857.30 : 2,770.76 = 1,551.12 : x
  2. Step 2: Convert to fraction form
    1,857.30/2,770.76 = 1,551.12/x
  3. Step 3: Cross multiply
    1,857.30x = 2,770.76 × 1,551.12
  4. Step 4: Simplify right side
    1,857.30x = 4,297,781.25
  5. Step 5: Solve for x
    x = 4,297,781.25/1,857.30
  6. Step 6: Final answer
    x = 2,313.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.