Home / 2,686.04-3,708.12-2,087.19

Finding the Fourth Proportional to 2,686.04, 3,708.12 and 2,087.19

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Solution

The fourth proportional to 2,686.04, 3,708.12 and 2,087.19 is: 2,881.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686.04 : 3,708.12 = 2,087.19 : x
  2. Step 2: Convert to fraction form
    2,686.04/3,708.12 = 2,087.19/x
  3. Step 3: Cross multiply
    2,686.04x = 3,708.12 × 2,087.19
  4. Step 4: Simplify right side
    2,686.04x = 7,739,550.98
  5. Step 5: Solve for x
    x = 7,739,550.98/2,686.04
  6. Step 6: Final answer
    x = 2,881.40

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Half scale
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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.