Home / 1,407.15-1,943.49-1,074.84

Finding the Fourth Proportional to 1,407.15, 1,943.49 and 1,074.84

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Solution

The fourth proportional to 1,407.15, 1,943.49 and 1,074.84 is: 1,484.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407.15 : 1,943.49 = 1,074.84 : x
  2. Step 2: Convert to fraction form
    1,407.15/1,943.49 = 1,074.84/x
  3. Step 3: Cross multiply
    1,407.15x = 1,943.49 × 1,074.84
  4. Step 4: Simplify right side
    1,407.15x = 2,088,940.79
  5. Step 5: Solve for x
    x = 2,088,940.79/1,407.15
  6. Step 6: Final answer
    x = 1,484.52

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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.