Home / 2,043.20-2,820-1,159.04

Finding the Fourth Proportional to 2,043.20, 2,820 and 1,159.04

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Solution

The fourth proportional to 2,043.20, 2,820 and 1,159.04 is: 1,599.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,043.20 : 2,820 = 1,159.04 : x
  2. Step 2: Convert to fraction form
    2,043.20/2,820 = 1,159.04/x
  3. Step 3: Cross multiply
    2,043.20x = 2,820 × 1,159.04
  4. Step 4: Simplify right side
    2,043.20x = 3,268,492.80
  5. Step 5: Solve for x
    x = 3,268,492.80/2,043.20
  6. Step 6: Final answer
    x = 1,599.69

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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.