Home / 2,031.18-2,802.56-1,191.84

Finding the Fourth Proportional to 2,031.18, 2,802.56 and 1,191.84

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Solution

The fourth proportional to 2,031.18, 2,802.56 and 1,191.84 is: 1,644.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,031.18 : 2,802.56 = 1,191.84 : x
  2. Step 2: Convert to fraction form
    2,031.18/2,802.56 = 1,191.84/x
  3. Step 3: Cross multiply
    2,031.18x = 2,802.56 × 1,191.84
  4. Step 4: Simplify right side
    2,031.18x = 3,340,205.76
  5. Step 5: Solve for x
    x = 3,340,205.76/2,031.18
  6. Step 6: Final answer
    x = 1,644.47

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1.5x scale

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.