Home / 1,885.83-2,601.36-1,380.93

Finding the Fourth Proportional to 1,885.83, 2,601.36 and 1,380.93

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Solution

The fourth proportional to 1,885.83, 2,601.36 and 1,380.93 is: 1,904.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,885.83 : 2,601.36 = 1,380.93 : x
  2. Step 2: Convert to fraction form
    1,885.83/2,601.36 = 1,380.93/x
  3. Step 3: Cross multiply
    1,885.83x = 2,601.36 × 1,380.93
  4. Step 4: Simplify right side
    1,885.83x = 3,592,296.06
  5. Step 5: Solve for x
    x = 3,592,296.06/1,885.83
  6. Step 6: Final answer
    x = 1,904.89

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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.