Home / 7,290.21-10,057.31-4,457.70

Finding the Fourth Proportional to 7,290.21, 10,057.31 and 4,457.70

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Solution

The fourth proportional to 7,290.21, 10,057.31 and 4,457.70 is: 6,149.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,290.21 : 10,057.31 = 4,457.70 : x
  2. Step 2: Convert to fraction form
    7,290.21/10,057.31 = 4,457.70/x
  3. Step 3: Cross multiply
    7,290.21x = 10,057.31 × 4,457.70
  4. Step 4: Simplify right side
    7,290.21x = 44,832,490.29
  5. Step 5: Solve for x
    x = 44,832,490.29/7,290.21
  6. Step 6: Final answer
    x = 6,149.68

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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.