Home / 5,428.22-7,490.89-3,070.34

Finding the Fourth Proportional to 5,428.22, 7,490.89 and 3,070.34

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Solution

The fourth proportional to 5,428.22, 7,490.89 and 3,070.34 is: 4,237.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.22 : 7,490.89 = 3,070.34 : x
  2. Step 2: Convert to fraction form
    5,428.22/7,490.89 = 3,070.34/x
  3. Step 3: Cross multiply
    5,428.22x = 7,490.89 × 3,070.34
  4. Step 4: Simplify right side
    5,428.22x = 22,999,579.20
  5. Step 5: Solve for x
    x = 22,999,579.20/5,428.22
  6. Step 6: Final answer
    x = 4,237.04

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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.