Home / 2,666.10-4,001.33-1,886.86

Finding the Fourth Proportional to 2,666.10, 4,001.33 and 1,886.86

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Solution

The fourth proportional to 2,666.10, 4,001.33 and 1,886.86 is: 2,831.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666.10 : 4,001.33 = 1,886.86 : x
  2. Step 2: Convert to fraction form
    2,666.10/4,001.33 = 1,886.86/x
  3. Step 3: Cross multiply
    2,666.10x = 4,001.33 × 1,886.86
  4. Step 4: Simplify right side
    2,666.10x = 7,549,932.41
  5. Step 5: Solve for x
    x = 7,549,932.41/2,666.10
  6. Step 6: Final answer
    x = 2,831.83

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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.