Home / 7,045.50-9,722.40-3,901.44

Finding the Fourth Proportional to 7,045.50, 9,722.40 and 3,901.44

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Solution

The fourth proportional to 7,045.50, 9,722.40 and 3,901.44 is: 5,383.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,045.50 : 9,722.40 = 3,901.44 : x
  2. Step 2: Convert to fraction form
    7,045.50/9,722.40 = 3,901.44/x
  3. Step 3: Cross multiply
    7,045.50x = 9,722.40 × 3,901.44
  4. Step 4: Simplify right side
    7,045.50x = 37,931,360.26
  5. Step 5: Solve for x
    x = 37,931,360.26/7,045.50
  6. Step 6: Final answer
    x = 5,383.77

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1.5x scale

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.