Home / 2,555.16-3,831.19-1,666.35

Finding the Fourth Proportional to 2,555.16, 3,831.19 and 1,666.35

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Solution

The fourth proportional to 2,555.16, 3,831.19 and 1,666.35 is: 2,498.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,555.16 : 3,831.19 = 1,666.35 : x
  2. Step 2: Convert to fraction form
    2,555.16/3,831.19 = 1,666.35/x
  3. Step 3: Cross multiply
    2,555.16x = 3,831.19 × 1,666.35
  4. Step 4: Simplify right side
    2,555.16x = 6,384,103.46
  5. Step 5: Solve for x
    x = 6,384,103.46/2,555.16
  6. Step 6: Final answer
    x = 2,498.51

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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.