Home / 2,686.40-3,707.70-1,567.99

Finding the Fourth Proportional to 2,686.40, 3,707.70 and 1,567.99

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Solution

The fourth proportional to 2,686.40, 3,707.70 and 1,567.99 is: 2,164.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686.40 : 3,707.70 = 1,567.99 : x
  2. Step 2: Convert to fraction form
    2,686.40/3,707.70 = 1,567.99/x
  3. Step 3: Cross multiply
    2,686.40x = 3,707.70 × 1,567.99
  4. Step 4: Simplify right side
    2,686.40x = 5,813,636.52
  5. Step 5: Solve for x
    x = 5,813,636.52/2,686.40
  6. Step 6: Final answer
    x = 2,164.10

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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.