Home / 1,392.48-2,077.32-1,162.84

Finding the Fourth Proportional to 1,392.48, 2,077.32 and 1,162.84

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Solution

The fourth proportional to 1,392.48, 2,077.32 and 1,162.84 is: 1,734.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392.48 : 2,077.32 = 1,162.84 : x
  2. Step 2: Convert to fraction form
    1,392.48/2,077.32 = 1,162.84/x
  3. Step 3: Cross multiply
    1,392.48x = 2,077.32 × 1,162.84
  4. Step 4: Simplify right side
    1,392.48x = 2,415,590.79
  5. Step 5: Solve for x
    x = 2,415,590.79/1,392.48
  6. Step 6: Final answer
    x = 1,734.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.