Home / 6,880.42-10,320.68-1,686.30

Finding the Fourth Proportional to 6,880.42, 10,320.68 and 1,686.30

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Solution

The fourth proportional to 6,880.42, 10,320.68 and 1,686.30 is: 2,529.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,880.42 : 10,320.68 = 1,686.30 : x
  2. Step 2: Convert to fraction form
    6,880.42/10,320.68 = 1,686.30/x
  3. Step 3: Cross multiply
    6,880.42x = 10,320.68 × 1,686.30
  4. Step 4: Simplify right side
    6,880.42x = 17,403,762.68
  5. Step 5: Solve for x
    x = 17,403,762.68/6,880.42
  6. Step 6: Final answer
    x = 2,529.46

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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.