Home / 1,487.16-2,228.46-1,313.40

Finding the Fourth Proportional to 1,487.16, 2,228.46 and 1,313.40

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Solution

The fourth proportional to 1,487.16, 2,228.46 and 1,313.40 is: 1,968.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487.16 : 2,228.46 = 1,313.40 : x
  2. Step 2: Convert to fraction form
    1,487.16/2,228.46 = 1,313.40/x
  3. Step 3: Cross multiply
    1,487.16x = 2,228.46 × 1,313.40
  4. Step 4: Simplify right side
    1,487.16x = 2,926,859.36
  5. Step 5: Solve for x
    x = 2,926,859.36/1,487.16
  6. Step 6: Final answer
    x = 1,968.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.