Home / 2,455.19-3,387.85-1,660.24

Finding the Fourth Proportional to 2,455.19, 3,387.85 and 1,660.24

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Solution

The fourth proportional to 2,455.19, 3,387.85 and 1,660.24 is: 2,290.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,455.19 : 3,387.85 = 1,660.24 : x
  2. Step 2: Convert to fraction form
    2,455.19/3,387.85 = 1,660.24/x
  3. Step 3: Cross multiply
    2,455.19x = 3,387.85 × 1,660.24
  4. Step 4: Simplify right side
    2,455.19x = 5,624,631.46
  5. Step 5: Solve for x
    x = 5,624,631.46/2,455.19
  6. Step 6: Final answer
    x = 2,290.92

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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.