Home / 1,852.45-2,780.70-1,159.90

Finding the Fourth Proportional to 1,852.45, 2,780.70 and 1,159.90

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Solution

The fourth proportional to 1,852.45, 2,780.70 and 1,159.90 is: 1,741.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,852.45 : 2,780.70 = 1,159.90 : x
  2. Step 2: Convert to fraction form
    1,852.45/2,780.70 = 1,159.90/x
  3. Step 3: Cross multiply
    1,852.45x = 2,780.70 × 1,159.90
  4. Step 4: Simplify right side
    1,852.45x = 3,225,333.93
  5. Step 5: Solve for x
    x = 3,225,333.93/1,852.45
  6. Step 6: Final answer
    x = 1,741.12

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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.