Home / 1,688.17-2,317.28-1,497.49

Finding the Fourth Proportional to 1,688.17, 2,317.28 and 1,497.49

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Solution

The fourth proportional to 1,688.17, 2,317.28 and 1,497.49 is: 2,055.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688.17 : 2,317.28 = 1,497.49 : x
  2. Step 2: Convert to fraction form
    1,688.17/2,317.28 = 1,497.49/x
  3. Step 3: Cross multiply
    1,688.17x = 2,317.28 × 1,497.49
  4. Step 4: Simplify right side
    1,688.17x = 3,470,104.65
  5. Step 5: Solve for x
    x = 3,470,104.65/1,688.17
  6. Step 6: Final answer
    x = 2,055.55

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.