Home / 1,360.08-1,885.48-1,286.16

Finding the Fourth Proportional to 1,360.08, 1,885.48 and 1,286.16

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Solution

The fourth proportional to 1,360.08, 1,885.48 and 1,286.16 is: 1,783.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,360.08 : 1,885.48 = 1,286.16 : x
  2. Step 2: Convert to fraction form
    1,360.08/1,885.48 = 1,286.16/x
  3. Step 3: Cross multiply
    1,360.08x = 1,885.48 × 1,286.16
  4. Step 4: Simplify right side
    1,360.08x = 2,425,028.96
  5. Step 5: Solve for x
    x = 2,425,028.96/1,360.08
  6. Step 6: Final answer
    x = 1,783.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.