Home / 5,403.76-7,457.39-3,045.85

Finding the Fourth Proportional to 5,403.76, 7,457.39 and 3,045.85

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Solution

The fourth proportional to 5,403.76, 7,457.39 and 3,045.85 is: 4,203.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,403.76 : 7,457.39 = 3,045.85 : x
  2. Step 2: Convert to fraction form
    5,403.76/7,457.39 = 3,045.85/x
  3. Step 3: Cross multiply
    5,403.76x = 7,457.39 × 3,045.85
  4. Step 4: Simplify right side
    5,403.76x = 22,714,080.30
  5. Step 5: Solve for x
    x = 22,714,080.30/5,403.76
  6. Step 6: Final answer
    x = 4,203.39

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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.