Home / 6,881.05-10,321.63-1,686.93

Finding the Fourth Proportional to 6,881.05, 10,321.63 and 1,686.93

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Solution

The fourth proportional to 6,881.05, 10,321.63 and 1,686.93 is: 2,530.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,881.05 : 10,321.63 = 1,686.93 : x
  2. Step 2: Convert to fraction form
    6,881.05/10,321.63 = 1,686.93/x
  3. Step 3: Cross multiply
    6,881.05x = 10,321.63 × 1,686.93
  4. Step 4: Simplify right side
    6,881.05x = 17,411,824.37
  5. Step 5: Solve for x
    x = 17,411,824.37/6,881.05
  6. Step 6: Final answer
    x = 2,530.40

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1.5x scale

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.