Home / 1,377.66-2,061.68-1,127.98

Finding the Fourth Proportional to 1,377.66, 2,061.68 and 1,127.98

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Solution

The fourth proportional to 1,377.66, 2,061.68 and 1,127.98 is: 1,688.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377.66 : 2,061.68 = 1,127.98 : x
  2. Step 2: Convert to fraction form
    1,377.66/2,061.68 = 1,127.98/x
  3. Step 3: Cross multiply
    1,377.66x = 2,061.68 × 1,127.98
  4. Step 4: Simplify right side
    1,377.66x = 2,325,533.81
  5. Step 5: Solve for x
    x = 2,325,533.81/1,377.66
  6. Step 6: Final answer
    x = 1,688.03

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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.