Home / 5,428.23-7,490.84-3,070.41

Finding the Fourth Proportional to 5,428.23, 7,490.84 and 3,070.41

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Solution

The fourth proportional to 5,428.23, 7,490.84 and 3,070.41 is: 4,237.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.23 : 7,490.84 = 3,070.41 : x
  2. Step 2: Convert to fraction form
    5,428.23/7,490.84 = 3,070.41/x
  3. Step 3: Cross multiply
    5,428.23x = 7,490.84 × 3,070.41
  4. Step 4: Simplify right side
    5,428.23x = 22,999,934.69
  5. Step 5: Solve for x
    x = 22,999,934.69/5,428.23
  6. Step 6: Final answer
    x = 4,237.10

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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.