Home / 1,730.51-2,590.89-1,317.95

Finding the Fourth Proportional to 1,730.51, 2,590.89 and 1,317.95

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Solution

The fourth proportional to 1,730.51, 2,590.89 and 1,317.95 is: 1,973.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,730.51 : 2,590.89 = 1,317.95 : x
  2. Step 2: Convert to fraction form
    1,730.51/2,590.89 = 1,317.95/x
  3. Step 3: Cross multiply
    1,730.51x = 2,590.89 × 1,317.95
  4. Step 4: Simplify right side
    1,730.51x = 3,414,663.48
  5. Step 5: Solve for x
    x = 3,414,663.48/1,730.51
  6. Step 6: Final answer
    x = 1,973.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.