Home / 1,948.10-2,688.37-1,063.90

Finding the Fourth Proportional to 1,948.10, 2,688.37 and 1,063.90

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Solution

The fourth proportional to 1,948.10, 2,688.37 and 1,063.90 is: 1,468.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948.10 : 2,688.37 = 1,063.90 : x
  2. Step 2: Convert to fraction form
    1,948.10/2,688.37 = 1,063.90/x
  3. Step 3: Cross multiply
    1,948.10x = 2,688.37 × 1,063.90
  4. Step 4: Simplify right side
    1,948.10x = 2,860,147.46
  5. Step 5: Solve for x
    x = 2,860,147.46/1,948.10
  6. Step 6: Final answer
    x = 1,468.17

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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.