Home / 2,666.47-4,001.61-1,186.09

Finding the Fourth Proportional to 2,666.47, 4,001.61 and 1,186.09

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Solution

The fourth proportional to 2,666.47, 4,001.61 and 1,186.09 is: 1,779.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666.47 : 4,001.61 = 1,186.09 : x
  2. Step 2: Convert to fraction form
    2,666.47/4,001.61 = 1,186.09/x
  3. Step 3: Cross multiply
    2,666.47x = 4,001.61 × 1,186.09
  4. Step 4: Simplify right side
    2,666.47x = 4,746,269.60
  5. Step 5: Solve for x
    x = 4,746,269.60/2,666.47
  6. Step 6: Final answer
    x = 1,779.98

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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.