Home / 7,405.83-10,218.76-4,421.49

Finding the Fourth Proportional to 7,405.83, 10,218.76 and 4,421.49

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Solution

The fourth proportional to 7,405.83, 10,218.76 and 4,421.49 is: 6,100.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,405.83 : 10,218.76 = 4,421.49 : x
  2. Step 2: Convert to fraction form
    7,405.83/10,218.76 = 4,421.49/x
  3. Step 3: Cross multiply
    7,405.83x = 10,218.76 × 4,421.49
  4. Step 4: Simplify right side
    7,405.83x = 45,182,095.78
  5. Step 5: Solve for x
    x = 45,182,095.78/7,405.83
  6. Step 6: Final answer
    x = 6,100.88

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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.