Home / 1,652.31-2,281.05-1,278.45

Finding the Fourth Proportional to 1,652.31, 2,281.05 and 1,278.45

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Solution

The fourth proportional to 1,652.31, 2,281.05 and 1,278.45 is: 1,764.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,652.31 : 2,281.05 = 1,278.45 : x
  2. Step 2: Convert to fraction form
    1,652.31/2,281.05 = 1,278.45/x
  3. Step 3: Cross multiply
    1,652.31x = 2,281.05 × 1,278.45
  4. Step 4: Simplify right side
    1,652.31x = 2,916,208.37
  5. Step 5: Solve for x
    x = 2,916,208.37/1,652.31
  6. Step 6: Final answer
    x = 1,764.93

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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.