Home / 1,454.04-2,189.70-1,309.50

Finding the Fourth Proportional to 1,454.04, 2,189.70 and 1,309.50

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Solution

The fourth proportional to 1,454.04, 2,189.70 and 1,309.50 is: 1,972.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,454.04 : 2,189.70 = 1,309.50 : x
  2. Step 2: Convert to fraction form
    1,454.04/2,189.70 = 1,309.50/x
  3. Step 3: Cross multiply
    1,454.04x = 2,189.70 × 1,309.50
  4. Step 4: Simplify right side
    1,454.04x = 2,867,412.15
  5. Step 5: Solve for x
    x = 2,867,412.15/1,454.04
  6. Step 6: Final answer
    x = 1,972.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.