Home / 3,235.40-4,464.30-1,818.72

Finding the Fourth Proportional to 3,235.40, 4,464.30 and 1,818.72

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Solution

The fourth proportional to 3,235.40, 4,464.30 and 1,818.72 is: 2,509.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,235.40 : 4,464.30 = 1,818.72 : x
  2. Step 2: Convert to fraction form
    3,235.40/4,464.30 = 1,818.72/x
  3. Step 3: Cross multiply
    3,235.40x = 4,464.30 × 1,818.72
  4. Step 4: Simplify right side
    3,235.40x = 8,119,311.70
  5. Step 5: Solve for x
    x = 8,119,311.70/3,235.40
  6. Step 6: Final answer
    x = 2,509.52

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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.