Home / 1,688.49-2,331.58-1,060.10

Finding the Fourth Proportional to 1,688.49, 2,331.58 and 1,060.10

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Solution

The fourth proportional to 1,688.49, 2,331.58 and 1,060.10 is: 1,463.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688.49 : 2,331.58 = 1,060.10 : x
  2. Step 2: Convert to fraction form
    1,688.49/2,331.58 = 1,060.10/x
  3. Step 3: Cross multiply
    1,688.49x = 2,331.58 × 1,060.10
  4. Step 4: Simplify right side
    1,688.49x = 2,471,707.96
  5. Step 5: Solve for x
    x = 2,471,707.96/1,688.49
  6. Step 6: Final answer
    x = 1,463.86

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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.