Home / 2,385.18-3,291.66-1,337.28

Finding the Fourth Proportional to 2,385.18, 3,291.66 and 1,337.28

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Solution

The fourth proportional to 2,385.18, 3,291.66 and 1,337.28 is: 1,845.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,385.18 : 3,291.66 = 1,337.28 : x
  2. Step 2: Convert to fraction form
    2,385.18/3,291.66 = 1,337.28/x
  3. Step 3: Cross multiply
    2,385.18x = 3,291.66 × 1,337.28
  4. Step 4: Simplify right side
    2,385.18x = 4,401,871.08
  5. Step 5: Solve for x
    x = 4,401,871.08/2,385.18
  6. Step 6: Final answer
    x = 1,845.51

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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.