Home / 6,860.32-10,290.39-1,666.19

Finding the Fourth Proportional to 6,860.32, 10,290.39 and 1,666.19

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Solution

The fourth proportional to 6,860.32, 10,290.39 and 1,666.19 is: 2,499.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,860.32 : 10,290.39 = 1,666.19 : x
  2. Step 2: Convert to fraction form
    6,860.32/10,290.39 = 1,666.19/x
  3. Step 3: Cross multiply
    6,860.32x = 10,290.39 × 1,666.19
  4. Step 4: Simplify right side
    6,860.32x = 17,145,744.91
  5. Step 5: Solve for x
    x = 17,145,744.91/6,860.32
  6. Step 6: Final answer
    x = 2,499.26

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Half scale
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Double scale
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Similar ratio
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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.