Home / 1,772.17-2,656.05-1,123.09

Finding the Fourth Proportional to 1,772.17, 2,656.05 and 1,123.09

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Solution

The fourth proportional to 1,772.17, 2,656.05 and 1,123.09 is: 1,683.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,772.17 : 2,656.05 = 1,123.09 : x
  2. Step 2: Convert to fraction form
    1,772.17/2,656.05 = 1,123.09/x
  3. Step 3: Cross multiply
    1,772.17x = 2,656.05 × 1,123.09
  4. Step 4: Simplify right side
    1,772.17x = 2,982,983.19
  5. Step 5: Solve for x
    x = 2,982,983.19/1,772.17
  6. Step 6: Final answer
    x = 1,683.24

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1.5x scale

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.