Home / 7,045.40-9,722.66-3,901.61

Finding the Fourth Proportional to 7,045.40, 9,722.66 and 3,901.61

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Solution

The fourth proportional to 7,045.40, 9,722.66 and 3,901.61 is: 5,384.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,045.40 : 9,722.66 = 3,901.61 : x
  2. Step 2: Convert to fraction form
    7,045.40/9,722.66 = 3,901.61/x
  3. Step 3: Cross multiply
    7,045.40x = 9,722.66 × 3,901.61
  4. Step 4: Simplify right side
    7,045.40x = 37,933,959.36
  5. Step 5: Solve for x
    x = 37,933,959.36/7,045.40
  6. Step 6: Final answer
    x = 5,384.22

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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.