Home / 2,355.52-3,247.20-1,858.72

Finding the Fourth Proportional to 2,355.52, 3,247.20 and 1,858.72

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Solution

The fourth proportional to 2,355.52, 3,247.20 and 1,858.72 is: 2,562.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,355.52 : 3,247.20 = 1,858.72 : x
  2. Step 2: Convert to fraction form
    2,355.52/3,247.20 = 1,858.72/x
  3. Step 3: Cross multiply
    2,355.52x = 3,247.20 × 1,858.72
  4. Step 4: Simplify right side
    2,355.52x = 6,035,635.58
  5. Step 5: Solve for x
    x = 6,035,635.58/2,355.52
  6. Step 6: Final answer
    x = 2,562.34

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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.