Home / 1,851.19-2,554.63-1,011.89

Finding the Fourth Proportional to 1,851.19, 2,554.63 and 1,011.89

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Solution

The fourth proportional to 1,851.19, 2,554.63 and 1,011.89 is: 1,396.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,851.19 : 2,554.63 = 1,011.89 : x
  2. Step 2: Convert to fraction form
    1,851.19/2,554.63 = 1,011.89/x
  3. Step 3: Cross multiply
    1,851.19x = 2,554.63 × 1,011.89
  4. Step 4: Simplify right side
    1,851.19x = 2,585,004.55
  5. Step 5: Solve for x
    x = 2,585,004.55/1,851.19
  6. Step 6: Final answer
    x = 1,396.40

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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.