Home / 1,771.97-2,445.28-986.00

Finding the Fourth Proportional to 1,771.97, 2,445.28 and 986.00

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Solution

The fourth proportional to 1,771.97, 2,445.28 and 986.00 is: 1,360.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,771.97 : 2,445.28 = 986.00 : x
  2. Step 2: Convert to fraction form
    1,771.97/2,445.28 = 986.00/x
  3. Step 3: Cross multiply
    1,771.97x = 2,445.28 × 986.00
  4. Step 4: Simplify right side
    1,771.97x = 2,411,031.39
  5. Step 5: Solve for x
    x = 2,411,031.39/1,771.97
  6. Step 6: Final answer
    x = 1,360.65

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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.