Home / 5,377.08-7,420.86-3,140.04

Finding the Fourth Proportional to 5,377.08, 7,420.86 and 3,140.04

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Solution

The fourth proportional to 5,377.08, 7,420.86 and 3,140.04 is: 4,333.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,377.08 : 7,420.86 = 3,140.04 : x
  2. Step 2: Convert to fraction form
    5,377.08/7,420.86 = 3,140.04/x
  3. Step 3: Cross multiply
    5,377.08x = 7,420.86 × 3,140.04
  4. Step 4: Simplify right side
    5,377.08x = 23,301,797.23
  5. Step 5: Solve for x
    x = 23,301,797.23/5,377.08
  6. Step 6: Final answer
    x = 4,333.54

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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.