Home / 2,686.79-4,030.58-1,021.55

Finding the Fourth Proportional to 2,686.79, 4,030.58 and 1,021.55

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Solution

The fourth proportional to 2,686.79, 4,030.58 and 1,021.55 is: 1,532.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686.79 : 4,030.58 = 1,021.55 : x
  2. Step 2: Convert to fraction form
    2,686.79/4,030.58 = 1,021.55/x
  3. Step 3: Cross multiply
    2,686.79x = 4,030.58 × 1,021.55
  4. Step 4: Simplify right side
    2,686.79x = 4,117,439.00
  5. Step 5: Solve for x
    x = 4,117,439.00/2,686.79
  6. Step 6: Final answer
    x = 1,532.48

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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.