Home / 6,280.40-9,428.70-5,049.20

Finding the Fourth Proportional to 6,280.40, 9,428.70 and 5,049.20

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Solution

The fourth proportional to 6,280.40, 9,428.70 and 5,049.20 is: 7,580.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,280.40 : 9,428.70 = 5,049.20 : x
  2. Step 2: Convert to fraction form
    6,280.40/9,428.70 = 5,049.20/x
  3. Step 3: Cross multiply
    6,280.40x = 9,428.70 × 5,049.20
  4. Step 4: Simplify right side
    6,280.40x = 47,607,392.04
  5. Step 5: Solve for x
    x = 47,607,392.04/6,280.40
  6. Step 6: Final answer
    x = 7,580.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.