Home / 2,124.12-3,186.18-585.08

Finding the Fourth Proportional to 2,124.12, 3,186.18 and 585.08

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Solution

The fourth proportional to 2,124.12, 3,186.18 and 585.08 is: 877.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124.12 : 3,186.18 = 585.08 : x
  2. Step 2: Convert to fraction form
    2,124.12/3,186.18 = 585.08/x
  3. Step 3: Cross multiply
    2,124.12x = 3,186.18 × 585.08
  4. Step 4: Simplify right side
    2,124.12x = 1,864,170.19
  5. Step 5: Solve for x
    x = 1,864,170.19/2,124.12
  6. Step 6: Final answer
    x = 877.62

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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.