Home / 2,193.32-3,026.40-1,309.07

Finding the Fourth Proportional to 2,193.32, 3,026.40 and 1,309.07

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Solution

The fourth proportional to 2,193.32, 3,026.40 and 1,309.07 is: 1,806.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,193.32 : 3,026.40 = 1,309.07 : x
  2. Step 2: Convert to fraction form
    2,193.32/3,026.40 = 1,309.07/x
  3. Step 3: Cross multiply
    2,193.32x = 3,026.40 × 1,309.07
  4. Step 4: Simplify right side
    2,193.32x = 3,961,769.45
  5. Step 5: Solve for x
    x = 3,961,769.45/2,193.32
  6. Step 6: Final answer
    x = 1,806.29

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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.