Home / 2,666.40-4,001.04-1,206.60

Finding the Fourth Proportional to 2,666.40, 4,001.04 and 1,206.60

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Solution

The fourth proportional to 2,666.40, 4,001.04 and 1,206.60 is: 1,810.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666.40 : 4,001.04 = 1,206.60 : x
  2. Step 2: Convert to fraction form
    2,666.40/4,001.04 = 1,206.60/x
  3. Step 3: Cross multiply
    2,666.40x = 4,001.04 × 1,206.60
  4. Step 4: Simplify right side
    2,666.40x = 4,827,654.86
  5. Step 5: Solve for x
    x = 4,827,654.86/2,666.40
  6. Step 6: Final answer
    x = 1,810.55

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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.