Home / 5,280.49-7,270.81-4,690.00

Finding the Fourth Proportional to 5,280.49, 7,270.81 and 4,690.00

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Solution

The fourth proportional to 5,280.49, 7,270.81 and 4,690.00 is: 6,457.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.49 : 7,270.81 = 4,690.00 : x
  2. Step 2: Convert to fraction form
    5,280.49/7,270.81 = 4,690.00/x
  3. Step 3: Cross multiply
    5,280.49x = 7,270.81 × 4,690.00
  4. Step 4: Simplify right side
    5,280.49x = 34,100,122.64
  5. Step 5: Solve for x
    x = 34,100,122.64/5,280.49
  6. Step 6: Final answer
    x = 6,457.76

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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.