Home / 1,539.10-2,307.89-880.88

Finding the Fourth Proportional to 1,539.10, 2,307.89 and 880.88

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Solution

The fourth proportional to 1,539.10, 2,307.89 and 880.88 is: 1,320.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539.10 : 2,307.89 = 880.88 : x
  2. Step 2: Convert to fraction form
    1,539.10/2,307.89 = 880.88/x
  3. Step 3: Cross multiply
    1,539.10x = 2,307.89 × 880.88
  4. Step 4: Simplify right side
    1,539.10x = 2,032,964.81
  5. Step 5: Solve for x
    x = 2,032,964.81/1,539.10
  6. Step 6: Final answer
    x = 1,320.88

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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.