Home / 1,948.30-2,688.65-1,064.08

Finding the Fourth Proportional to 1,948.30, 2,688.65 and 1,064.08

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Solution

The fourth proportional to 1,948.30, 2,688.65 and 1,064.08 is: 1,468.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,948.30 : 2,688.65 = 1,064.08 : x
  2. Step 2: Convert to fraction form
    1,948.30/2,688.65 = 1,064.08/x
  3. Step 3: Cross multiply
    1,948.30x = 2,688.65 × 1,064.08
  4. Step 4: Simplify right side
    1,948.30x = 2,860,934.63
  5. Step 5: Solve for x
    x = 2,860,934.63/1,948.30
  6. Step 6: Final answer
    x = 1,468.43

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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.