Home / 2,752.21-3,798.53-1,690.57

Finding the Fourth Proportional to 2,752.21, 3,798.53 and 1,690.57

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Solution

The fourth proportional to 2,752.21, 3,798.53 and 1,690.57 is: 2,333.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,752.21 : 3,798.53 = 1,690.57 : x
  2. Step 2: Convert to fraction form
    2,752.21/3,798.53 = 1,690.57/x
  3. Step 3: Cross multiply
    2,752.21x = 3,798.53 × 1,690.57
  4. Step 4: Simplify right side
    2,752.21x = 6,421,680.86
  5. Step 5: Solve for x
    x = 6,421,680.86/2,752.21
  6. Step 6: Final answer
    x = 2,333.28

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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.