Home / 2,820.16-3,892.28-1,935.24

Finding the Fourth Proportional to 2,820.16, 3,892.28 and 1,935.24

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Solution

The fourth proportional to 2,820.16, 3,892.28 and 1,935.24 is: 2,670.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820.16 : 3,892.28 = 1,935.24 : x
  2. Step 2: Convert to fraction form
    2,820.16/3,892.28 = 1,935.24/x
  3. Step 3: Cross multiply
    2,820.16x = 3,892.28 × 1,935.24
  4. Step 4: Simplify right side
    2,820.16x = 7,532,495.95
  5. Step 5: Solve for x
    x = 7,532,495.95/2,820.16
  6. Step 6: Final answer
    x = 2,670.95

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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.