Home / 2,216.58-3,057.60-1,387.14

Finding the Fourth Proportional to 2,216.58, 3,057.60 and 1,387.14

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Solution

The fourth proportional to 2,216.58, 3,057.60 and 1,387.14 is: 1,913.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,216.58 : 3,057.60 = 1,387.14 : x
  2. Step 2: Convert to fraction form
    2,216.58/3,057.60 = 1,387.14/x
  3. Step 3: Cross multiply
    2,216.58x = 3,057.60 × 1,387.14
  4. Step 4: Simplify right side
    2,216.58x = 4,241,319.26
  5. Step 5: Solve for x
    x = 4,241,319.26/2,216.58
  6. Step 6: Final answer
    x = 1,913.45

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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.