Home / 1,539.46-2,307.93-890.74

Finding the Fourth Proportional to 1,539.46, 2,307.93 and 890.74

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Solution

The fourth proportional to 1,539.46, 2,307.93 and 890.74 is: 1,335.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539.46 : 2,307.93 = 890.74 : x
  2. Step 2: Convert to fraction form
    1,539.46/2,307.93 = 890.74/x
  3. Step 3: Cross multiply
    1,539.46x = 2,307.93 × 890.74
  4. Step 4: Simplify right side
    1,539.46x = 2,055,765.57
  5. Step 5: Solve for x
    x = 2,055,765.57/1,539.46
  6. Step 6: Final answer
    x = 1,335.38

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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.