Home / 5,402.00-7,454.90-2,979.45

Finding the Fourth Proportional to 5,402.00, 7,454.90 and 2,979.45

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Solution

The fourth proportional to 5,402.00, 7,454.90 and 2,979.45 is: 4,111.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,402.00 : 7,454.90 = 2,979.45 : x
  2. Step 2: Convert to fraction form
    5,402.00/7,454.90 = 2,979.45/x
  3. Step 3: Cross multiply
    5,402.00x = 7,454.90 × 2,979.45
  4. Step 4: Simplify right side
    5,402.00x = 22,211,486.91
  5. Step 5: Solve for x
    x = 22,211,486.91/5,402.00
  6. Step 6: Final answer
    x = 4,111.72

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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.