Home / 1,123.22-1,683.80-1,030.98

Finding the Fourth Proportional to 1,123.22, 1,683.80 and 1,030.98

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Solution

The fourth proportional to 1,123.22, 1,683.80 and 1,030.98 is: 1,545.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123.22 : 1,683.80 = 1,030.98 : x
  2. Step 2: Convert to fraction form
    1,123.22/1,683.80 = 1,030.98/x
  3. Step 3: Cross multiply
    1,123.22x = 1,683.80 × 1,030.98
  4. Step 4: Simplify right side
    1,123.22x = 1,735,964.12
  5. Step 5: Solve for x
    x = 1,735,964.12/1,123.22
  6. Step 6: Final answer
    x = 1,545.52

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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.