Home / 7,579.19-10,457.90-4,221.92

Finding the Fourth Proportional to 7,579.19, 10,457.90 and 4,221.92

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Solution

The fourth proportional to 7,579.19, 10,457.90 and 4,221.92 is: 5,825.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,579.19 : 10,457.90 = 4,221.92 : x
  2. Step 2: Convert to fraction form
    7,579.19/10,457.90 = 4,221.92/x
  3. Step 3: Cross multiply
    7,579.19x = 10,457.90 × 4,221.92
  4. Step 4: Simplify right side
    7,579.19x = 44,152,427.48
  5. Step 5: Solve for x
    x = 44,152,427.48/7,579.19
  6. Step 6: Final answer
    x = 5,825.48

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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.