Home / 1,223.60-1,835.40-1,006.72

Finding the Fourth Proportional to 1,223.60, 1,835.40 and 1,006.72

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Solution

The fourth proportional to 1,223.60, 1,835.40 and 1,006.72 is: 1,510.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223.60 : 1,835.40 = 1,006.72 : x
  2. Step 2: Convert to fraction form
    1,223.60/1,835.40 = 1,006.72/x
  3. Step 3: Cross multiply
    1,223.60x = 1,835.40 × 1,006.72
  4. Step 4: Simplify right side
    1,223.60x = 1,847,731.37
  5. Step 5: Solve for x
    x = 1,847,731.37/1,223.60
  6. Step 6: Final answer
    x = 1,510.08

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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.