Home / 5,428.01-7,489.85-3,070.10

Finding the Fourth Proportional to 5,428.01, 7,489.85 and 3,070.10

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Solution

The fourth proportional to 5,428.01, 7,489.85 and 3,070.10 is: 4,236.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.01 : 7,489.85 = 3,070.10 : x
  2. Step 2: Convert to fraction form
    5,428.01/7,489.85 = 3,070.10/x
  3. Step 3: Cross multiply
    5,428.01x = 7,489.85 × 3,070.10
  4. Step 4: Simplify right side
    5,428.01x = 22,994,535.69
  5. Step 5: Solve for x
    x = 22,994,535.69/5,428.01
  6. Step 6: Final answer
    x = 4,236.28

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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.