Home / 2,686.48-3,709.07-2,190.31

Finding the Fourth Proportional to 2,686.48, 3,709.07 and 2,190.31

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Solution

The fourth proportional to 2,686.48, 3,709.07 and 2,190.31 is: 3,024.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686.48 : 3,709.07 = 2,190.31 : x
  2. Step 2: Convert to fraction form
    2,686.48/3,709.07 = 2,190.31/x
  3. Step 3: Cross multiply
    2,686.48x = 3,709.07 × 2,190.31
  4. Step 4: Simplify right side
    2,686.48x = 8,124,013.11
  5. Step 5: Solve for x
    x = 8,124,013.11/2,686.48
  6. Step 6: Final answer
    x = 3,024.04

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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.