Home / 2,151.12-2,966.40-1,365.60

Finding the Fourth Proportional to 2,151.12, 2,966.40 and 1,365.60

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Solution

The fourth proportional to 2,151.12, 2,966.40 and 1,365.60 is: 1,883.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,151.12 : 2,966.40 = 1,365.60 : x
  2. Step 2: Convert to fraction form
    2,151.12/2,966.40 = 1,365.60/x
  3. Step 3: Cross multiply
    2,151.12x = 2,966.40 × 1,365.60
  4. Step 4: Simplify right side
    2,151.12x = 4,050,915.84
  5. Step 5: Solve for x
    x = 4,050,915.84/2,151.12
  6. Step 6: Final answer
    x = 1,883.17

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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.