Home / 2,145.15-3,217.73-585.16

Finding the Fourth Proportional to 2,145.15, 3,217.73 and 585.16

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Solution

The fourth proportional to 2,145.15, 3,217.73 and 585.16 is: 877.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145.15 : 3,217.73 = 585.16 : x
  2. Step 2: Convert to fraction form
    2,145.15/3,217.73 = 585.16/x
  3. Step 3: Cross multiply
    2,145.15x = 3,217.73 × 585.16
  4. Step 4: Simplify right side
    2,145.15x = 1,882,875.92
  5. Step 5: Solve for x
    x = 1,882,875.92/2,145.15
  6. Step 6: Final answer
    x = 877.74

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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.