Home / 2,193.92-3,026.28-1,407.68

Finding the Fourth Proportional to 2,193.92, 3,026.28 and 1,407.68

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Solution

The fourth proportional to 2,193.92, 3,026.28 and 1,407.68 is: 1,941.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,193.92 : 3,026.28 = 1,407.68 : x
  2. Step 2: Convert to fraction form
    2,193.92/3,026.28 = 1,407.68/x
  3. Step 3: Cross multiply
    2,193.92x = 3,026.28 × 1,407.68
  4. Step 4: Simplify right side
    2,193.92x = 4,260,033.83
  5. Step 5: Solve for x
    x = 4,260,033.83/2,193.92
  6. Step 6: Final answer
    x = 1,941.75

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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.