Home / 3,281.45-4,528.51-1,865.20

Finding the Fourth Proportional to 3,281.45, 4,528.51 and 1,865.20

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Solution

The fourth proportional to 3,281.45, 4,528.51 and 1,865.20 is: 2,574.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,281.45 : 4,528.51 = 1,865.20 : x
  2. Step 2: Convert to fraction form
    3,281.45/4,528.51 = 1,865.20/x
  3. Step 3: Cross multiply
    3,281.45x = 4,528.51 × 1,865.20
  4. Step 4: Simplify right side
    3,281.45x = 8,446,565.24
  5. Step 5: Solve for x
    x = 8,446,565.24/3,281.45
  6. Step 6: Final answer
    x = 2,574.04

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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.