Home / 1,948.27-2,688.70-1,064.08

Finding the Fourth Proportional to 1,948.27, 2,688.70 and 1,064.08

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Solution

The fourth proportional to 1,948.27, 2,688.70 and 1,064.08 is: 1,468.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948.27 : 2,688.70 = 1,064.08 : x
  2. Step 2: Convert to fraction form
    1,948.27/2,688.70 = 1,064.08/x
  3. Step 3: Cross multiply
    1,948.27x = 2,688.70 × 1,064.08
  4. Step 4: Simplify right side
    1,948.27x = 2,860,991.90
  5. Step 5: Solve for x
    x = 2,860,991.90/1,948.27
  6. Step 6: Final answer
    x = 1,468.48

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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.