Home / 2,221.80-3,064.85-1,337.06

Finding the Fourth Proportional to 2,221.80, 3,064.85 and 1,337.06

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Solution

The fourth proportional to 2,221.80, 3,064.85 and 1,337.06 is: 1,844.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,221.80 : 3,064.85 = 1,337.06 : x
  2. Step 2: Convert to fraction form
    2,221.80/3,064.85 = 1,337.06/x
  3. Step 3: Cross multiply
    2,221.80x = 3,064.85 × 1,337.06
  4. Step 4: Simplify right side
    2,221.80x = 4,097,888.34
  5. Step 5: Solve for x
    x = 4,097,888.34/2,221.80
  6. Step 6: Final answer
    x = 1,844.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.