Home / 1,948.56-2,688.90-1,064.37

Finding the Fourth Proportional to 1,948.56, 2,688.90 and 1,064.37

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Solution

The fourth proportional to 1,948.56, 2,688.90 and 1,064.37 is: 1,468.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948.56 : 2,688.90 = 1,064.37 : x
  2. Step 2: Convert to fraction form
    1,948.56/2,688.90 = 1,064.37/x
  3. Step 3: Cross multiply
    1,948.56x = 2,688.90 × 1,064.37
  4. Step 4: Simplify right side
    1,948.56x = 2,861,984.49
  5. Step 5: Solve for x
    x = 2,861,984.49/1,948.56
  6. Step 6: Final answer
    x = 1,468.77

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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.