Home / 2,585.15-3,565.18-2,187.68

Finding the Fourth Proportional to 2,585.15, 3,565.18 and 2,187.68

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Solution

The fourth proportional to 2,585.15, 3,565.18 and 2,187.68 is: 3,017.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,585.15 : 3,565.18 = 2,187.68 : x
  2. Step 2: Convert to fraction form
    2,585.15/3,565.18 = 2,187.68/x
  3. Step 3: Cross multiply
    2,585.15x = 3,565.18 × 2,187.68
  4. Step 4: Simplify right side
    2,585.15x = 7,799,472.98
  5. Step 5: Solve for x
    x = 7,799,472.98/2,585.15
  6. Step 6: Final answer
    x = 3,017.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.