Home / 7,931.48-11,897.41-2,666.66

Finding the Fourth Proportional to 7,931.48, 11,897.41 and 2,666.66

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Solution

The fourth proportional to 7,931.48, 11,897.41 and 2,666.66 is: 4,000.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,931.48 : 11,897.41 = 2,666.66 : x
  2. Step 2: Convert to fraction form
    7,931.48/11,897.41 = 2,666.66/x
  3. Step 3: Cross multiply
    7,931.48x = 11,897.41 × 2,666.66
  4. Step 4: Simplify right side
    7,931.48x = 31,726,347.35
  5. Step 5: Solve for x
    x = 31,726,347.35/7,931.48
  6. Step 6: Final answer
    x = 4,000.05

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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.