Home / 2,178.52-3,005.58-1,246.48

Finding the Fourth Proportional to 2,178.52, 3,005.58 and 1,246.48

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Solution

The fourth proportional to 2,178.52, 3,005.58 and 1,246.48 is: 1,719.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178.52 : 3,005.58 = 1,246.48 : x
  2. Step 2: Convert to fraction form
    2,178.52/3,005.58 = 1,246.48/x
  3. Step 3: Cross multiply
    2,178.52x = 3,005.58 × 1,246.48
  4. Step 4: Simplify right side
    2,178.52x = 3,746,395.36
  5. Step 5: Solve for x
    x = 3,746,395.36/2,178.52
  6. Step 6: Final answer
    x = 1,719.70

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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.