Home / 6,880.30-10,320.45-1,686.13

Finding the Fourth Proportional to 6,880.30, 10,320.45 and 1,686.13

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Solution

The fourth proportional to 6,880.30, 10,320.45 and 1,686.13 is: 2,529.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,880.30 : 10,320.45 = 1,686.13 : x
  2. Step 2: Convert to fraction form
    6,880.30/10,320.45 = 1,686.13/x
  3. Step 3: Cross multiply
    6,880.30x = 10,320.45 × 1,686.13
  4. Step 4: Simplify right side
    6,880.30x = 17,401,560.33
  5. Step 5: Solve for x
    x = 17,401,560.33/6,880.30
  6. Step 6: Final answer
    x = 2,529.19

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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.