Home / 7,457.38-10,290.57-4,390.74

Finding the Fourth Proportional to 7,457.38, 10,290.57 and 4,390.74

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Solution

The fourth proportional to 7,457.38, 10,290.57 and 4,390.74 is: 6,058.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,457.38 : 10,290.57 = 4,390.74 : x
  2. Step 2: Convert to fraction form
    7,457.38/10,290.57 = 4,390.74/x
  3. Step 3: Cross multiply
    7,457.38x = 10,290.57 × 4,390.74
  4. Step 4: Simplify right side
    7,457.38x = 45,183,217.32
  5. Step 5: Solve for x
    x = 45,183,217.32/7,457.38
  6. Step 6: Final answer
    x = 6,058.86

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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.