Home / 1,917.48-2,860.08-1,605.72

Finding the Fourth Proportional to 1,917.48, 2,860.08 and 1,605.72

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Solution

The fourth proportional to 1,917.48, 2,860.08 and 1,605.72 is: 2,395.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917.48 : 2,860.08 = 1,605.72 : x
  2. Step 2: Convert to fraction form
    1,917.48/2,860.08 = 1,605.72/x
  3. Step 3: Cross multiply
    1,917.48x = 2,860.08 × 1,605.72
  4. Step 4: Simplify right side
    1,917.48x = 4,592,487.66
  5. Step 5: Solve for x
    x = 4,592,487.66/1,917.48
  6. Step 6: Final answer
    x = 2,395.06

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.