Home / 5,118.30-7,640.10-4,495.53

Finding the Fourth Proportional to 5,118.30, 7,640.10 and 4,495.53

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Solution

The fourth proportional to 5,118.30, 7,640.10 and 4,495.53 is: 6,710.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.30 : 7,640.10 = 4,495.53 : x
  2. Step 2: Convert to fraction form
    5,118.30/7,640.10 = 4,495.53/x
  3. Step 3: Cross multiply
    5,118.30x = 7,640.10 × 4,495.53
  4. Step 4: Simplify right side
    5,118.30x = 34,346,298.75
  5. Step 5: Solve for x
    x = 34,346,298.75/5,118.30
  6. Step 6: Final answer
    x = 6,710.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.