Home / 2,785.64-3,844.58-1,607.40

Finding the Fourth Proportional to 2,785.64, 3,844.58 and 1,607.40

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Solution

The fourth proportional to 2,785.64, 3,844.58 and 1,607.40 is: 2,218.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785.64 : 3,844.58 = 1,607.40 : x
  2. Step 2: Convert to fraction form
    2,785.64/3,844.58 = 1,607.40/x
  3. Step 3: Cross multiply
    2,785.64x = 3,844.58 × 1,607.40
  4. Step 4: Simplify right side
    2,785.64x = 6,179,777.89
  5. Step 5: Solve for x
    x = 6,179,777.89/2,785.64
  6. Step 6: Final answer
    x = 2,218.44

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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.