Home / 7,238.86-9,990.70-4,586.51

Finding the Fourth Proportional to 7,238.86, 9,990.70 and 4,586.51

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Solution

The fourth proportional to 7,238.86, 9,990.70 and 4,586.51 is: 6,330.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,238.86 : 9,990.70 = 4,586.51 : x
  2. Step 2: Convert to fraction form
    7,238.86/9,990.70 = 4,586.51/x
  3. Step 3: Cross multiply
    7,238.86x = 9,990.70 × 4,586.51
  4. Step 4: Simplify right side
    7,238.86x = 45,822,458.97
  5. Step 5: Solve for x
    x = 45,822,458.97/7,238.86
  6. Step 6: Final answer
    x = 6,330.07

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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.