Home / 2,178.60-3,006.24-1,339.35

Finding the Fourth Proportional to 2,178.60, 3,006.24 and 1,339.35

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Solution

The fourth proportional to 2,178.60, 3,006.24 and 1,339.35 is: 1,848.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178.60 : 3,006.24 = 1,339.35 : x
  2. Step 2: Convert to fraction form
    2,178.60/3,006.24 = 1,339.35/x
  3. Step 3: Cross multiply
    2,178.60x = 3,006.24 × 1,339.35
  4. Step 4: Simplify right side
    2,178.60x = 4,026,407.54
  5. Step 5: Solve for x
    x = 4,026,407.54/2,178.60
  6. Step 6: Final answer
    x = 1,848.16

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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.