Home / 2,320.76-3,203.10-1,376.18

Finding the Fourth Proportional to 2,320.76, 3,203.10 and 1,376.18

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Solution

The fourth proportional to 2,320.76, 3,203.10 and 1,376.18 is: 1,899.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,320.76 : 3,203.10 = 1,376.18 : x
  2. Step 2: Convert to fraction form
    2,320.76/3,203.10 = 1,376.18/x
  3. Step 3: Cross multiply
    2,320.76x = 3,203.10 × 1,376.18
  4. Step 4: Simplify right side
    2,320.76x = 4,408,042.16
  5. Step 5: Solve for x
    x = 4,408,042.16/2,320.76
  6. Step 6: Final answer
    x = 1,899.40

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Half scale
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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.