Home / 2,784.60-4,175.04-1,140.72

Finding the Fourth Proportional to 2,784.60, 4,175.04 and 1,140.72

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Solution

The fourth proportional to 2,784.60, 4,175.04 and 1,140.72 is: 1,710.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,784.60 : 4,175.04 = 1,140.72 : x
  2. Step 2: Convert to fraction form
    2,784.60/4,175.04 = 1,140.72/x
  3. Step 3: Cross multiply
    2,784.60x = 4,175.04 × 1,140.72
  4. Step 4: Simplify right side
    2,784.60x = 4,762,551.63
  5. Step 5: Solve for x
    x = 4,762,551.63/2,784.60
  6. Step 6: Final answer
    x = 1,710.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.