Home / 1,207.20-1,810.65-1,003.08

Finding the Fourth Proportional to 1,207.20, 1,810.65 and 1,003.08

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Solution

The fourth proportional to 1,207.20, 1,810.65 and 1,003.08 is: 1,504.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207.20 : 1,810.65 = 1,003.08 : x
  2. Step 2: Convert to fraction form
    1,207.20/1,810.65 = 1,003.08/x
  3. Step 3: Cross multiply
    1,207.20x = 1,810.65 × 1,003.08
  4. Step 4: Simplify right side
    1,207.20x = 1,816,237.35
  5. Step 5: Solve for x
    x = 1,816,237.35/1,207.20
  6. Step 6: Final answer
    x = 1,504.50

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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.